Duren and his siblings Julius, George D. and Simon were the children of John Beckham and Rebecca Duren. John was the son of Simon Beckham and Roseanna McMillan. Simon was the son of William Beckham and Ann (Nancy) Green. William was the son of William Beckham and Phillis Mackey. This William was the son of William Beckham and Phillis Randolph. Simon Beckham and Lydia were the parents of this last William.
It is suggested that this Simon was either the son or brother of William Beckham the Immigrant and his wife Tabetha Randolph.