Mark Sydney Davis is best known as the adopted son of American entertainer Sammy Davis Jr. and actress May Britt. He was born on April 6, 1960, in Los Angeles, California, and was adopted by the couple when he was about three years old.
Mark later worked behind the scenes on Sammy’s tours and also worked at Costco. He has two sons, Ryan and Andrew. Questions about whether Sammy was his biological father continued for years, but a reported DNA test with Sammy’s biological daughter, Tracey Davis, did not support Mark and Tracey being biological siblings.
Mark Sydney Davis’s Profile Overview
| Detail | Information |
|---|---|
| Full name | Mark Sydney Davis |
| Date of birth | April 6, 1960 |
| Age | 66 years old in 2026 |
| Birthplace | Los Angeles, California, United States |
| Nationality | American |
| Adoptive father | Sammy Davis Jr. |
| Adoptive mother | May Britt |
| Biological parents | Not publicly established |
| Adoption finalized | June 3, 1963, reportedly |
| Siblings in the Davis family | Tracey Davis, Jeff Davis, Manny Davis |
| Education | George Whittell High School |
| Profession | Former assistant stage manager; later Costco employee |
| Marriages | Reportedly married three times |
| Children | Two sons |
| Sons | Ryan Davis and Andrew Davis |
| Net worth | Not reliably known |
| Current residence | California reported |
| Social media | No verified public account identified |
Who Is Mark Sydney Davis?
Mark Sydney Davis is the adopted son of Sammy Davis Jr. and May Britt.
He grew up in a famous entertainment family but did not pursue the same type of public career as his father. Instead, Mark worked behind the scenes and later held a regular job away from Hollywood’s spotlight.
Much of the public interest in Mark comes from his relationship with Sammy and questions about his biological parentage.
How Old Is Mark Sydney Davis?
Mark Sydney Davis was born on April 6, 1960, in Los Angeles, California.
He is 66 years old in 2026. His zodiac sign is Aries.
Mark Sydney Davis’ Early Life
Mark became part of the Davis family when he was a young child.
Sammy Davis Jr. and May Britt reportedly finalized his adoption on June 3, 1963, when Mark was about three years old.
He grew up around the entertainment industry because Sammy was already a major performer. However, Mark later described a childhood in which his father’s demanding career often kept him away from the family.
Who Are Mark Sydney Davis’ Biological Parents?
Mark Sydney Davis’ biological parents have not been publicly established in the available information.
Sammy Davis Jr. and May Britt were his adoptive parents.
Mark later received a birth certificate that reportedly listed Sammy and May as his parents. However, that document alone does not establish that they were his biological parents.
Was Mark Sydney Davis Sammy Davis Jr.’s Biological Son?
Mark’s biological relationship with Sammy became a subject of public interest.
Mark said that people who knew Sammy sometimes told him that Sammy was actually his biological father. This created uncertainty because Mark had always been publicly identified as an adopted son.
The question became even more important to Mark because of something Sammy reportedly said near the end of his life.
Sammy Davis Jr.’s Final Words to Mark
Mark has said that he visited Sammy when his father was close to death.
According to Mark, Sammy told him, “You are my son.”
Mark later said he did not know exactly what Sammy meant. He questioned whether Sammy was referring to a biological relationship or simply telling Mark that he considered and loved him as his son.
The statement itself does not prove biological paternity.
Mark Sydney Davis’ DNA Test
Mark later took part in DNA testing with Tracey Davis, Sammy Davis Jr. and May Britt’s biological daughter.
The reported results did not support Mark and Tracey being biological siblings.
Because Tracey was Sammy and May’s biological daughter, the result supported the long-standing account that Mark had been adopted.
The available information does not identify Mark’s biological mother or father.
Who Was Sammy Davis Jr.?
Sammy Davis Jr. was an American singer, dancer, actor, comedian, and entertainer.
He became one of the best-known entertainers of his generation and was associated with the Rat Pack.
Other famous Rat Pack members included Frank Sinatra, Dean Martin, Joey Bishop, and Peter Lawford.
Sammy worked across music, television, live entertainment, and film.
His acting credits included projects such as Ocean’s 11, Salt and Pepper, The Cannonball, and The Kid Who Loved Christmas.
Sammy died in 1990 after suffering from laryngeal cancer.
Who Is May Britt?
May Britt is a Swedish actress and Mark’s adoptive mother.
She married Sammy Davis Jr. and raised Mark as part of their family.
Sammy and May divorced in 1968, when Mark was still a child.
The available information does not establish a biological relationship between May and Mark.
Mark Sydney Davis’ Relationship With Sammy Davis Jr.
Mark’s relationship with Sammy included both family and professional connections.
Sammy’s entertainment career required frequent travel. Mark later said that he and his father did not communicate as much as he would have liked.
According to one supplied account, seeing Sammy became more difficult after Sammy and May’s divorce.
Mark nevertheless continued to regard Sammy as his father.
Mark and Sammy Davis Jr.’s Golf Connection
One secondary account says Mark learned to play golf because Sammy enjoyed the sport.
The report says playing golf gave the two opportunities to spend time together away from performances and public events.
This is a reported family anecdote rather than a widely documented part of Mark’s biography.
Mark Sydney Davis’ Siblings
Mark grew up as part of the Davis family with Tracey Davis and Jeff Davis. Sammy later had another son, Manny Davis, during his marriage to Altovise Gore.
Because Mark was adopted, descriptions such as biological “half-brother” can be misleading when discussing Manny. They are members of the same Davis family, but the available DNA information does not establish Sammy as Mark’s biological father.
Who Was Tracey Davis?
Tracey Davis was the biological daughter of Sammy Davis Jr. and May Britt.
She grew up with Mark and later participated in the DNA testing concerning Mark’s biological background.
Tracey died on November 2, 2020.
She also had children of her own.
Who Is Jeff Davis?
Jeff Davis was another son adopted by Sammy Davis Jr. and May Britt.
The available information says Sammy and May adopted Jeff in 1965.
Mark, Tracey, and Jeff therefore grew up as members of the same immediate family.
Who Is Manny Davis?
Manny Davis is Sammy Davis Jr.’s son from his later marriage to actress and dancer Altovise Joanne Gore.
The supplied information says Manny primarily lives and works in Las Vegas, Nevada.
His exact birth year is not publicly clear. One source reports that he celebrates his birthday on November 18.
Mark Sydney Davis’ Education
Mark attended George Whittell High School.
The available sources do not identify a college or university he attended.
There is also no publicly confirmed college degree associated with him.
Mark Sydney Davis’ Career
Mark did not become a singer or actor like Sammy.
His known work includes a behind-the-scenes role on Sammy’s tours during the 1980s. He later worked at Costco in California.
These jobs reflect the private working life Mark chose outside a major entertainment career.
Working on Sammy Davis Jr.’s Tours
During the 1980s, Mark worked as an assistant stage manager while Sammy toured the United States.
His responsibilities involved preparing items needed for Sammy’s performances.
Reported duties included preparing:
- Tap shoes
- A glass of whisky
- An autocue
- Other items required for the show
This allowed Mark to work directly with his father while remaining behind the scenes.
Mark Sydney Davis’ Costco Job
By 2015, Mark was reportedly working at a Costco near Hollywood in Los Angeles.
He worked as a clerk behind the store’s photo counter.
Mark spoke about working to support himself and the people close to him. He did not pursue the celebrity lifestyle associated with his father’s career.
Is Mark Sydney Davis Married?
Mark has kept his relationships and marriages private.
One report states that he has been married three times. However, the names of his reported spouses and details about the marriages have not been publicly established in the supplied information.
His current marital status is also unclear.
Mark Sydney Davis’ Sons
Mark is the father of two sons:
- Ryan Davis
- Andrew Davis
Andrew is also referred to as Andy in one secondary account.
Their birth dates and ages are not reliably available.
Mark’s Relationship With Ryan and Andrew
Mark has spoken about wanting to be a more present father to his children.
He said that he and Sammy did not communicate enough when he was growing up. Mark wanted his relationship with Ryan and Andrew to be different.
He has described his sons as an important part of his life and said he tries to provide for and communicate with them.
One secondary source also reports that Ryan enjoys playing drums, an instrument Sammy Davis Jr. also played. This detail is not as strongly documented as the basic information about Mark’s two sons.
Sammy Davis Jr.’s Grandsons
The supplied information says Sammy Davis Jr. had six grandsons.
Ryan and Andrew are Mark’s sons. Four other grandsons are reportedly through Tracey Davis.
The available source does not identify all of Tracey’s sons by name.
Mark Sydney Davis’ Net Worth
Mark Sydney Davis’ personal net worth is not reliably known.
No verified source provides a clear figure for his wealth.
Estimates of Sammy Davis Jr.’s earnings or net worth should not be used as Mark’s personal net worth.
How Tall Is Mark Sydney Davis?
Mark Sydney Davis’ height has not been publicly confirmed in the available information.
There is no reliable measurement to include.
Where Is Mark Sydney Davis Today?
Mark has generally maintained a private life.
He has been associated with California, including his reported Costco job near Hollywood. One secondary source says he continued to live in California in 2026, although his exact current residence has not been firmly confirmed.
There is limited reliable information about his current employment or daily activities.
Is Mark Sydney Davis on Social Media?
No clearly verified public Instagram, Facebook, X, or other social media account belonging to Mark Sydney Davis has been identified in the supplied information.
He has maintained a much lower public profile than Sammy Davis Jr.
Things to Know About Mark Sydney Davis
- Mark Sydney Davis was born on April 6, 1960.
- He was born in Los Angeles, California.
- He is 66 years old in 2026.
- Sammy Davis Jr. and May Britt adopted him.
- His adoption was reportedly finalized on June 3, 1963.
- He was about three years old when he was adopted.
- His biological parents have not been publicly established.
- His birth certificate reportedly lists Sammy and May as his parents.
- Sammy reportedly told Mark, “You are my son,” near the end of his life.
- Mark later underwent DNA testing with Tracey Davis.
- The reported results did not support Mark and Tracey being biological siblings.
- Tracey was Sammy Davis Jr. and May Britt’s biological daughter.
- Jeff Davis was another adopted son of Sammy and May.
- Manny Davis is Sammy’s son from his later marriage to Altovise Gore.
- Mark attended George Whittell High School.
- He worked as an assistant stage manager on Sammy’s U.S. tours during the 1980s.
- His backstage duties included preparing items Sammy needed during performances.
- By 2015, Mark was reportedly working at a Costco near Hollywood.
- He has reportedly been married three times, but details about his spouses are unclear.
- He has two sons, Ryan and Andrew Davis.
- Mark has spoken about wanting a closer and more communicative relationship with his sons.
- His personal net worth is not reliably known.
- His height has not been publicly confirmed.
- No clearly verified public social media account has been identified.
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