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Male William Hinckley Click to view William Hinckley in the family tree

1   William's father was John Hinckley and his mother was Hannah Oliver.  His paternal grandparents were Samuel (Twin) Hinckley and Sarah Miller. He had five brothers and four sisters, named David, Samuel, John, Miller, Ezekiel, Mary, Hannah, Sarah and Mehitable.1 

1 phelps.FTW
Further source/citation:
World Family Tree Vol. 16, Ed. 1 @ Tree #1604