Background
Walker, Sears Cook was born on March 23, 1805 in Wilmington, Massachusetts, United States. Son of Benjamin and Susanna (Cook) Walker.
Walker, Sears Cook was born on March 23, 1805 in Wilmington, Massachusetts, United States. Son of Benjamin and Susanna (Cook) Walker.
Graduated from Harvard, 1825.
Member of staff United States Naval Observatory, Washington, District of Columbia, 1845, discovered that planet Neptune was identical with star seen twice by Lalande in 1795, which had been referred to as star Number 26266, 1847.