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Male Peter Aldrich Click to view Peter Aldrich in the family tree

Peter was born on October 17th, 1686.1   Peter's father was Jacob Aldrich and his mother was Huldah Thayer.  His paternal grandparents were George Aldrich and Katherine Seald. He had six brothers and five sisters, named Jacob, Seth, David, John, Moses, Abel, Huldah, Sarah, Rachel, Mercy and Rachel.1 

1 phelps.FTW @ Tree #1309
Further sources/citations:
World Family Tree Vol. 3, Ed. 1 @ Tree #0061, 0061.ftw