Mark was the son of Albert Vernon Williamson and Nannie Mae Jefferson. The date and place of his birth have not been found.
Mark Allen Williamson
Albert Vernon Williamson (1905-1997)
Nannie Mae Jefferson (1913-1994)
James Harvey Jefferson (1879-1952)
George H Jefferson (1834-1891)
Martha Emaline Cliburn (1845-1906)
Vivian Davis (1887-1984)