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Male Hermes Holcomb Click to view Hermes Holcomb in the family tree

Hermes was born after May 3rd, 1774.1   Hermes' father was Hermes Holcomb and his mother was Lucy Alvord.  His maternal grandparents were Joseph Alvord and Lucy Griswold. He had a brother and two sisters, and also a sibling of unknown gender, named William, Mary, Selina and Almerin.  He was the second oldest of the five children.1 

1 phelps.FTW @ Tree #0105
Further sources/citations:
World Family Tree Vol. 3, Ed. 1 @ Tree #0105, 0105.ftw @ Tree #0105