Mark Sydney Davees is widely known as the adopted son of Sammy Davis Jr. and Swedish actress May Britt. Unlike his famous father, Mark did not build a public entertainment career. Most reliable coverage presents him as a private family member whose name entered the spotlight because of questions about his adoption, a reported deathbed statement, and a televised DNA test many years after Sammy’s death.
Public accounts place Mark’s birth around 1960 and his adoption in 1963, when he was about two or three years old. That timing matters because some online summaries incorrectly place the adoption in 1965. Sammy and May also raised their biological daughter, Tracey, and another adopted son, Jeff, before their marriage ended in 1968. The exact details of Mark’s early birth record remain less clearly documented by major outlets.
| Quick fact | Available public information |
|---|---|
| Full name | Mark Sydney Davees |
| Birth year | Widely reported as approximately 1960 |
| Adoptive parents | Sammy Davis Jr. and May Britt |
| Adoption | Around 1963, at age two or three |
| Siblings raised with him | Tracey Davis and Jeff Davis |
| Reported career | Costco photo clerk |
| Public attention | Adoption history and 2015 DNA test |
The adoption timing and family relationships are supported by biographical coverage, although major sources do not consistently publish Mark’s exact date of birth.
Growing Up in Sammy Davis Jr. and May Britt’s Family
Sammy Davis Jr. was one of the most versatile American entertainers of the twentieth century. He sang, danced, acted, performed comedy, and became a central member of the Rat Pack. His marriage to May Britt also drew intense attention because interracial marriage remained illegal in many states when the couple announced their engagement and married in 1960. Their home therefore existed under unusual public and social pressure.
Family accounts identify Tracey as the couple’s biological daughter and Mark and Jeff as their adopted sons. Tracey was born in 1961, while the two boys joined the family through adoption. These relationships explain why searches about Sammy Davis Jr.’s children often lead directly to Mark’s unusual family story.
Sammy and May divorced in 1968. Tracey later described a complicated childhood shaped by her father’s demanding performance schedule, but she also wrote about reconciliation and healing within the family. Mark did not publish a comparable memoir, so much less is publicly documented about his childhood experiences or his private relationship with each parent.
Why Did the Paternity Rumors Begin?
Questions about Mark Sydney Davees and his biological origins intensified because of a conversation he said occurred near the end of Sammy’s life in 1990. According to Mark’s account, Sammy held him and said, “You are my son.” Mark later wondered whether those words were a biological confession or simply a father affirming his love for the child he had raised.
The uncertainty reportedly grew after Mark found a birth certificate naming Sammy Davis Jr. as his father. A birth certificate alone, however, does not settle biological paternity, particularly when adoption or amended records may be involved. Tracey publicly rejected the idea that Mark was Sammy’s biological son. Their disagreement ultimately led the siblings to participate in DNA testing intended to examine the claim.
Several factors helped the rumor spread:
- Mark believed he physically resembled Sammy.
- People close to the family reportedly questioned the adoption story.
- Sammy’s final statement could be interpreted in different ways.
- The birth certificate appeared to name Sammy as Mark’s father.
- No publicly identified biological parents provided a clear alternative explanation.
None of those details independently proved biological paternity. They explained Mark’s uncertainty, but scientific evidence was still needed to test the theory.
What Did the 2015 DNA Test Reveal?
In 2015, Inside Edition arranged DNA testing for Mark and Tracey. The test compared their samples to determine whether they shared a biological parent. Because Tracey was publicly recognized as the biological daughter of Sammy Davis Jr. and May Britt, a sibling match would have supported Mark’s claim that Sammy was also his biological father. The program presented the comparison as a direct examination of the long-running theory.
The reported result found no match and stated that Mark and Tracey did not share a common biological parent. That finding strongly contradicted the theory that Sammy fathered both of them. It did not reveal Mark’s biological parents, and it was a televised paternity investigation rather than a court ruling. The most accurate wording is that the DNA test did not support Sammy Davis Jr.’s biological paternity.
The testing process can be summarized in three steps:
- DNA samples were collected from Mark and Tracey.
- The laboratory compared the samples for evidence of a shared biological parent.
- The results reported no shared biological parent between them.
The outcome also meant that Mark and Tracey were not biological siblings through either Sammy or May. However, both indicated that the result would not end the brother-and-sister relationship they had developed through their shared upbringing.
What Do the Confirmed Facts Show?
The distinction between the family record and the rumor is important. Mark was Sammy’s son in the legal and social sense because Sammy and May adopted and raised him. The unresolved question concerned genetics. After the test, Mark and Tracey said the result would not break their relationship as siblings, placing their established family bond above the biological finding.
For readers comparing the claims, the evidence points in one clear direction: public family biographies describe adoption, Mark’s account explains why he questioned that history, and the 2015 DNA result found no shared biological parent with Tracey. No reliable report has since established that Sammy Davis Jr. was Mark’s biological father. The responsible conclusion is therefore based on confirmed adoption, not an unproven secret-paternity narrative.
| Question | Confirmed information | Unproven or inaccurate claim |
|---|---|---|
| Was Mark Sammy’s son? | Yes, through adoption and upbringing | That adoption made him less of a family member |
| Was Sammy his biological father? | The 2015 DNA result did not support this | That he was a confirmed secret love child |
| Did Sammy say, “You are my son”? | Mark reported that he did | That the statement definitely meant biological paternity |
| Did a court decide the case? | No court ruling was reported | That paternity was “legally disproved” |
| Are Mark and Tracey biological siblings? | The test reported no shared biological parent | That they share Sammy as a biological father |
An accurate article about Mark should therefore follow this checklist:
- Describe him as Sammy Davis Jr.’s adopted son.
- Attribute the final statement to Mark’s personal account.
- Explain the DNA test without calling it a court judgment.
- Avoid presenting the love-child theory as proven.
- Distinguish family identity from genetic ancestry.
- Avoid unsupported claims about wealth, relationships or current employment.
Career and Later Life Away from Hollywood
Mark largely remained outside Hollywood and worked as a photo clerk at Costco, according to Inside Edition’s 2015 coverage. That ordinary career became part of the television segment because it contrasted sharply with Sammy Davis Jr.’s international fame. Reliable public information about Mark’s complete employment history, income, relationships and daily life remains limited, reflecting his long-standing preference for privacy.
He has occasionally appeared in public reporting when family matters required it. In December 2025, Mark confirmed that May Britt had died of natural causes at age 91. Even then, the coverage focused mainly on Britt’s film career, historic marriage and surviving family rather than on Mark’s personal life. Claims about his current job or supposed net worth should therefore be treated cautiously unless supported by direct evidence.
Mark’s story attracts attention because it combines celebrity history with a universal question: what makes someone a parent? The DNA test addressed a genetic claim, but it did not erase decades of family life. Sammy adopted Mark, gave him the Davis family name and raised him as a son. Mark’s account suggests that Sammy’s reported final words remained personally meaningful even after the biological theory was not supported.
Conclusion
Mark Sydney Davees remains best understood as the adopted son of Sammy Davis Jr. and May Britt. He was raised in a famous family but chose a private working life rather than a career built around his father’s name. Questions about his biological origins intensified after Sammy’s reported final words, yet the 2015 sibling DNA test found that Mark and Tracey did not share a biological parent.
The result did not erase their family relationship. Sammy was Mark’s father through adoption, upbringing and identity. The paternity test challenged one public theory while leaving Mark’s biological ancestry unresolved. For readers searching for Mark Sydney Davees, the most reliable account is a story about adoption, privacy, personal identity and a family bond that existed beyond DNA.