How are white and black Lackses related? Who are their common ancestors ?

Thy are blood related. The common ancestors were:

 Alber Lacks(Father) , Arbert Lacks(Son), Winston Lacks, and Benjamin Lacks.

The true answer is Robert B Lacks/Mary polly Conner had Albert, Benjamin, and winston. Albert and Ben both had kids with maria, 5 total. One of those half white kids was Tommy and that was the start