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Female Martha Clark Alvord Click to view Martha Clark Alvord in the family tree

Martha Clark was born on January 11th, 1869 in Darien, CT.1   Martha Clark's father was Frederick Alvord and her mother was Susan G. Ely.  Her paternal grandparents were Martin Alvord and Martha Burleigh Clark; her maternal grandparents were Alfred Ely and Susan Gridley. She had three brothers and two sisters, named Alfred Ely, Andrew Porter, Ralph Flynt, Grace and Susan Gridley.1 

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