She is his mother. I did not enter the date of birth for William Holmes, Jr., nor do I have the clearance within Geni to set a Master Profile status. My research has found a stated year of birth for William, Jr., of 1715, with his birth occurring in Prince George's County, Maryland, USA. It is also presents, his death on March 10, 1758 in Frederick County, Maryland, USA. As I am not the Master Curator of his profile, I cannot reset any birth or death date information.