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Male Isaac Gibbs Click to view Isaac Gibbs in the family tree

Isaac was born on May 18th, 1759 in Litchfield,Litchfield,CT.1   Isaac's father was Gershem Gibbs and his mother was Tabitha Moore.  His paternal grandparents were Benjamin Gibbs and Abigail Marshall; his maternal grandparents were Benjamin Moore and Eunice Phelps. He had four brothers and a sister, named Gershom, Oliver, Lowell, Moore and Ruth.2 

1 1356.ftw
2 phelps.FTW @ Tree #1353
Further sources/citations:
World Family Tree Vol. 1, Ed. 1 @ Tree #0988, phelps.FTW, World Family Tree Vol. 4, Ed. 1 @ Tree #1353, 1353.ftw, World Family Tree Vol. 2, Ed. 1 @ Tree #1356, 1356.ftw, World Family Tree Vol. 2, Ed. 1 @ Tree #1356