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Male Alanson Phelps Click to view Alanson Phelps in the family tree

Alanson was born on March 5th, 1804.1   Alanson's father was Jacob Phelps and his mother was Lucy Webster.  His paternal grandparents were Elnathan Phelps and Sarah Smallage Elenthorp; his maternal grandparents were Samuel Webster and Lucy Warren. He had four brothers and three sisters, named Alonson, William S., Orsamus, Edwin O., Lucy W., Lucinda M. and Polly.  He was the oldest of the eight children.1 

1 phelps.FTW @ Tree #1309
Further sources/citations:
World Family Tree Vol. 3, Ed. 1 @ Tree #0061, 0061.ftw