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Female Mary Jenney Click to view Mary Jenney in the family tree

Mary was born on April 20th, 1705 in Dartmouth, MA.1   Mary's father was Lettice Jenne Jenney and her mother was Desire Blackwell.  Her maternal grandparents were John Blackwell and Sarah Warren. She had six brothers and five sisters, named Cornelius, Caleb, Samuel, Nathaniel, Benjamin, Ignatius, Sarah, Reliance, Ruth, Elizabeth and Parnell.1 

1 basel.FTW
Further source/citation:
World Family Tree Vol. 9, Ed. 1 @ Tree #2571