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Male Simeon John Dewey Click to view Simeon John Dewey in the family tree

Simeon John was born on March 15th, 1871 in Kansas City, MO.1   Simeon John's father was Simeon J. Dewey and his mother was Olive Caroline McClelland.  His paternal grandparents were Simeon Dewey and Betsey Bigelow Knight; his maternal grandparents were John McClelland and Fanny Moore. He had a brother and two sisters, named Lorenzo, Frances Moore and Mira Olive.  He was the oldest of the four children. He had two half-brothers and three half-sisters, named Charles Francis, William Curtis, Lizzie, Alice Mira and Lillie Jane.1 

1 phelps.FTW @ Tree #1353
Further sources/citations:
World Family Tree Vol. 1, Ed. 1 @ Tree #3310, phelps.FTW, World Family Tree Vol. 4, Ed. 1 @ Tree #2332, 2332.ftw