Mark Sydney Davis: Sammy Davis Jr.’s Adopted Son, Family Story and the Truth Behind His DNA Test

Mark Sydney Davis is best known as the adopted son of legendary entertainer Sammy Davis Jr. and Swedish actress May Britt. He entered their famous Hollywood family as a young child in 1963 and grew up with siblings Tracey and Jeff Davis. Although Mark later questioned whether Sammy might have been his biological father, a televised DNA test did not support that belief.

Mark Sydney Davis Quick Bio

His full birthday is widely reported as April 6, 1960, although stronger official family sources usually identify him only as Mark and do not publish his complete birth details.

Who Is Mark Sydney Davis?

Mark Sydney Davis is one of the four children connected with Sammy Davis Jr.’s family.

Sammy and May Britt had one biological daughter, Tracey, and adopted two sons, Mark and Jeff. Sammy later adopted another son, Manny, with his third wife, dancer Altovise Gore. The official Sammy Davis Jr. estate website confirms this family structure.

Mark did not build a major entertainment career like his father.

Instead, he lived mostly outside Hollywood and became publicly visible mainly when he discussed questions surrounding his adoption and biological identity in 2015.

Is His Name Mark Sydney Davis or Mark Sidney Davis?

Both spellings appear online, but Mark Sidney Davis seems to be the stronger historical form.

Getty Images uses “Mark Sidney Davis” in archival captions showing him with Sammy Davis Jr., May Britt and Tracey. A detailed Sammy Davis Jr. timeline also uses the middle name Sidney.

However, many modern biography pages spell his name Mark Sydney Davis. That version has become a common search term even though it may not match the wording in older family records.

The clearest approach is to write:

Mark Sidney Davis, often searched online as Mark Sydney Davis.

How Old Is Mark Sydney Davis?

Mark was born in 1960, making him approximately 66 years old in July 2026.

April 6, 1960, appears as his reported birthday in several biographical records. However, the exact date is not displayed on the official Sammy Davis Jr. estate website, so it should be described as widely reported rather than fully confirmed through a direct family biography.

His simple age timeline is:

When Was Mark Davis Adopted?

Sammy Davis Jr. and May Britt completed Mark’s adoption in June 1963, when he was nearly three years old.

A detailed Davis timeline gives June 3, 1963, as the date the adoption became final. Inside Edition later described him as having been adopted when he was about two, which may reflect his age when the process began rather than when it legally ended.

After the adoption, Mark joined Sammy, May and their young daughter Tracey.

Historical family photographs from the period show Mark as a small child with his new parents and sister. Getty’s captions consistently identify him as part of the Davis family.

Who Is Mark Sydney Davis’ Father?

Mark’s legal and adoptive father was Sammy Davis Jr.

Sammy was a singer, dancer, actor, comedian, impressionist and musician. He became a central member of the Rat Pack alongside Frank Sinatra and Dean Martin and spent more than six decades in entertainment.

His official estate also describes him as a civil-rights supporter who performed at benefits, marched with Martin Luther King Jr. and helped raise money for the movement.

To Mark, however, Sammy was not simply a famous performer.

Mark later said that Sammy showed affection during his childhood. He also recalled important words Sammy reportedly spoke near the end of his life, which led Mark to wonder whether their connection might have been biological as well as legal.

Who Was Mark Sydney Davis’ Mother?

Mark’s adoptive mother was Swedish actress May Britt.

Britt appeared in films including The Young Lions, The Blue Angel and Murder, Inc. before her marriage to Sammy Davis Jr. Her acting career slowed after their interracial relationship attracted major public hostility during the early 1960s.

Sammy and May married in 1960, when interracial marriage remained illegal in many American states. Their relationship brought professional pressure, threats and political controversy.

They divorced in 1968 but remained connected through their children.

May died from natural causes on December 11, 2025, at age 91. Mark confirmed her death to The Hollywood Reporter, providing one of the latest dependable public updates directly connected with him.

What Was Mark’s Childhood Like?

Mark grew up inside one of America’s most closely watched celebrity families.

His father performed in nightclubs, films, television programmes and theatres around the world. Meanwhile, his parents’ interracial marriage attracted intense attention during a period of open racial discrimination.

Family photographs show Mark at public and private events with Sammy, May, Tracey and Jeff.

Still, photographs cannot reveal every part of childhood. Mark later suggested that his relationship with Sammy became less regular after Sammy and May divorced.

Unlike children raised in an ordinary household, Mark grew up with a parent whose work required frequent travel and public performances.

This environment may explain why many details about his childhood have been discussed through interviews rather than a complete autobiography.

Who Are Mark Sydney Davis’ Siblings?

Mark has three siblings within Sammy Davis Jr.’s recognised family.

Tracey Davis

Tracey Davis was Sammy and May Britt’s biological daughter.

She became an author and wrote about her father and family history. Tracey died in November 2020 at age 59.

Tracey played an important role in Mark’s search for answers about his biological background because she agreed to take a DNA test with him in 2015.

Jeff Davis

Jeff was the second son adopted by Sammy and May.

The official Sammy Davis Jr. website identifies both Mark and Jeff as the couple’s adopted sons. Jeff has maintained an even quieter public life than Mark.

Manny Davis

Manny Davis was adopted by Sammy and Altovise Gore.

Today, Manny serves as administrator of the Sammy Davis Jr. and Altovise Davis Estate, according to the entertainer’s official website.

Why Did Mark Think Sammy Davis Jr. Might Be His Biological Father?

Mark said that Sammy’s final words to him created questions about his biological identity.

According to Mark’s account, he visited Sammy while the entertainer was dying in 1990. Mark said Sammy pulled him close and told him, “You are my son.” Mark later wondered whether the words carried a hidden biological meaning.

The statement alone did not prove biological parenthood.

An adoptive father may naturally describe an adopted child as his son because adoption creates a genuine parent-child relationship.

Still, Mark said the moment stayed in his mind.

He later found documents that appeared to name Sammy and May as his natural parents. May reportedly denied being his biological mother, which increased Mark’s uncertainty about where he came from.

What Did Mark Sydney Davis’ DNA Test Reveal?

In 2015, Mark and Tracey agreed to take a DNA test through Identity Match.

The test compared their samples to determine whether they shared a biological parent. Since Tracey was known as Sammy Davis Jr. and May Britt’s biological daughter, a close match would have supported Mark’s belief that he shared at least one biological parent with her.

The results found no biological match.

Inside Edition reported that Mark and Tracey did not share a common biological parent. This meant the test did not support the idea that Sammy was the biological father of both Mark and Tracey.

The result also indicated that May Britt was not their shared biological mother.

However, the test did not identify Mark’s birth parents. It only showed that he and Tracey were not biologically related as brother and sister.

Did the DNA Result Change Mark and Tracey’s Relationship?

No.

Mark and Tracey said the DNA findings would not end their bond as siblings.

After receiving the results, they exchanged messages of love and continued treating one another as brother and sister. Their reaction showed that their family relationship did not depend only on shared genetics.

They had grown up together as part of the Davis household.

A laboratory result could answer one biological question, but it could not remove decades of shared family experience.

Is Mark Davis Sammy Davis Jr.’s Real Son?

Yes, Mark remains Sammy Davis Jr.’s son through adoption.

The 2015 DNA test did not support the claim that Sammy was his biological father. However, biology is not required for a legal and emotional parent-child relationship.

The Sammy Davis Jr. Estate continues to recognise Mark as one of Sammy’s adopted sons.

Recent reporting about May Britt also identifies Mark as her son.

Therefore, the most accurate description is:

Mark Davis is the adopted son of Sammy Davis Jr. and May Britt. His biological parents have not been publicly identified.

What Did Mark Sydney Davis Do for a Living?

Mark did not follow Sammy into singing, acting or dancing.

Inside Edition identified him in 2015 as a photo clerk working at Costco. That job became widely mentioned because it showed how different his adult life was from the glamorous world associated with his father.

No dependable recent professional profile confirms whether he still works for Costco in 2026.

The company has also changed its photo services since the original interview, so older employment information should not automatically be presented as his present job.

His current occupation remains private.

Did Mark Sydney Davis Become an Actor or Singer?

No dependable film, television or music record shows that Mark built a professional entertainment career.

He appeared in family photographs and later participated in interviews about Sammy and his personal identity. These appearances did not make him a career actor or television personality.

Mark may have inherited an interest in music or performance, but no major album, tour, acting role or production credit has been reliably connected with him.

He should be described as a private member of an entertainment family, not as a professional performer.

Is Mark Sydney Davis Married?

Mark has kept his marriage and relationship history largely private.

Some secondary reports describe him as married, but no strong current interview or official family biography names a wife or provides a verified wedding date.

For this reason, his current relationship status should be described as private.

Articles should not identify an unverified person as his spouse.

Does Mark Sydney Davis Have Children?

Mark is widely reported to have two sons named Andrew and Ryan Davis.

Entertainment Weekly’s 2025 report about May Britt’s death listed Andrew and Ryan among her surviving grandchildren, while later biographical accounts connect both men with Mark.

However, Mark has not made his children major public figures.

Details about their ages, homes, relationships and careers should remain private unless they choose to discuss them publicly.

What Is Mark Sydney Davis’ Net Worth?

Mark’s exact net worth has never been publicly verified.

Online estimates often rely on his father’s fame rather than Mark’s actual finances. Sammy Davis Jr.’s career success does not reveal Mark’s personal savings, income, inheritance, debts or property.

A real calculation would require private information about:

• His employment earnings
• Property ownership
• Investments
• Family trusts
• Inheritance
• Taxes and debts

No dependable financial record provides those details.

The honest answer is that Mark Sydney Davis’ net worth remains unknown.

Did Mark Inherit Money From Sammy Davis Jr.?

The full private distribution of Sammy Davis Jr.’s estate has not been made public in a way that confirms how much Mark received.

Sammy died in 1990 after a highly successful career, but reports about his finances have also described debts and tax issues. An estate’s public value does not show what each family member ultimately received.

Mark has not publicly confirmed a specific inheritance amount.

Claims that he inherited millions of dollars should therefore be treated as speculation.

Is Mark Sydney Davis Still Alive?

The latest dependable public update found during research places Mark alive in December 2025.

He personally confirmed that May Britt died on December 11, 2025, and major publications identified him as her surviving son.

As of July 2026, no reliable obituary or family statement reports Mark’s death.

His limited public presence should not be mistaken for evidence that something happened to him. He has simply maintained a private lifestyle.

Where Is Mark Sydney Davis Today?

Mark’s current home and daily routine have not been publicly confirmed.

Older reports connected him with California and his Costco employment, but information published in 2015 may no longer describe his life accurately.

He returned briefly to public attention after his mother’s death in December 2025.

Beyond confirming the news, he did not release a detailed update about his career, health or family life.

Confirmed Facts and Unverified Claims

Reliably Confirmed

• Mark is Sammy Davis Jr. and May Britt’s adopted son.
• He was born around 1960.
• His adoption was completed in June 1963.
• His siblings include Tracey, Jeff and Manny Davis.
• He worked as a Costco photo clerk in 2015.
• He questioned whether Sammy might have been his biological father.
• A 2015 DNA test found no biological match between Mark and Tracey.
• Mark and Tracey remained emotionally close after the result.
• Mark confirmed May Britt’s death in December 2025.

Not Reliably Confirmed

• The identities of his biological parents
• His exact birthplace
• His current occupation
• His current wife or partner
• His full financial position
• A verified personal social-media account
• His exact inheritance
• His complete private family history

Final Thoughts

Mark Sydney Davis, more accurately identified in several historical records as Mark Sidney Davis, is the adopted son of Sammy Davis Jr. and May Britt.

His adoption became final in June 1963, and he grew up with Tracey and Jeff inside a famous Hollywood household. Sammy later adopted Manny Davis with Altovise Gore.

Mark lived a much quieter adult life than his celebrated father.

He worked as a Costco photo clerk and generally avoided building a public entertainment career. His greatest period of media attention came in 2015, when he tried to answer questions about his biological background.

The DNA test showed that Mark and Tracey did not share a biological parent.

Still, both made it clear that the result did not change their relationship as brother and sister.

More recently, Mark confirmed the death of his mother, May Britt, in December 2025. That update showed that he remained connected with the family while continuing to keep most of his own life private.

Mark’s biological origins may remain uncertain, but his recognised place in the Davis family is clear.

Frequently Asked Questions

Who is Mark Sydney Davis?

Mark Sydney Davis is the adopted son of entertainer Sammy Davis Jr. and actress May Britt.

Is his middle name Sydney or Sidney?

Historical Getty captions and archival sources often use Sidney, while many modern websites use Sydney.

When was Mark Sydney Davis born?

He was born in 1960. April 6, 1960, is the most widely reported date, although official family sources do not clearly display his complete birthday.

How old is Mark Sydney Davis?

He is approximately 66 years old as of July 2026.

When was Mark adopted?

Sammy Davis Jr. and May Britt completed his adoption in June 1963.

Is Mark Sammy Davis Jr.’s biological son?

A 2015 DNA test did not support that claim. Mark and Sammy’s biological daughter Tracey did not share a common biological parent.

Who is Mark Davis’ biological mother?

Her identity has not been publicly confirmed.

Who are Mark Sydney Davis’ siblings?

His siblings in the recognised Davis family are Tracey, Jeff and Manny Davis.

What happened to Tracey Davis?

Tracey Davis died in November 2020 at age 59.

What did Mark do for a living?

Inside Edition reported in 2015 that he worked as a Costco photo clerk. His current occupation is unknown.

Is Mark Sydney Davis married?

His present relationship status has not been reliably confirmed.

Does Mark Sydney Davis have children?

He is widely reported to have two sons, Andrew and Ryan.

Is Mark Sydney Davis still alive?

No reliable report announces his death. He was publicly identified as alive when he confirmed May Britt’s death in December 2025.

What is Mark Sydney Davis’ net worth?

His exact net worth is unknown because no dependable public financial records confirm it.

When did May Britt die?

May Britt died from natural causes on December 11, 2025, at age 91. Mark confirmed her death.

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