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Male Joseph Landon Click to view Joseph Landon in the family tree

1   Joseph's father was James Landon and his mother was Mary Vaill.  His paternal grandparents were Nathan Landon and Hannah Sandford; his maternal grandfather was John Vaill. He had five brothers and four sisters, named John, David, Daniel, James, Nathan, Lydia, May, Rachel and Ann.1 

1 phelps.FTW @ Tree #1309
Further sources/citations:
World Family Tree Vol. 3, Ed. 1 @ Tree #3455, 3455.ftw