Click to expand/collapse all other details

Male Jacob Roller Click to view Jacob Roller in the family tree

Jacob was born in 1750.1   Jacob's father was Jacob Roller and his mother was Mary Hammer.  His maternal grandparents were Johannes Hammer and Jane. He had five brothers and two sisters, named Michael, John, Baltzer, Philip, Caleb, Margaret and Mary.  He was the oldest of the eight children.1 

1 phelps.FTW @ Tree #1353
Further sources/citations:
World Family Tree Vol. 4, Ed. 1 @ Tree #0574, 0574.ftw