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Male Calvin Gridley Alvord Click to view Calvin Gridley Alvord in the family tree

Calvin Gridley was born on November 30th, 1846 in Farmington, CT.1   Calvin Gridley's father was Jesse Herd Alvord and his mother was Sylvia Ann Edgecomb.  His paternal grandparents were Ashbel Alvord and Mary Jacobs; his maternal grandfather was Charles Edgecomb. He had three brothers and six sisters, named Silas Benton, William Watson, Henry, Sarah Ann, Mariette, Jane Maria, Emily Matilda, Harriet Ella and Martha.  He was the third oldest of the ten children.  He died at the age of 15 on December 10th, 1861 in Willimantic, CT.1 

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