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Female Mary Roller Click to view Mary Roller in the family tree

Mary was born in 1760.1   Mary's father was Jacob Roller and her mother was Mary Hammer.  Her maternal grandparents were Johannes Hammer and Jane. She had six brothers and a sister, named Jacob, Michael, John, Baltzer, Philip, Caleb and Margaret.  She was the third youngest of the eight children.1 

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