Joseph Adair was born 23 January 1842 in Itawamba County, Mississippi to Samuel Jefferson Adair (1806-1889) and Jemima Catherina Mangum (1809-1848) and died 8 September 1846 Mt. Pisgah, Union County, Iowa of unspecified causes.
Mount Pisgah was a refugee way station from 1846 to 1852 along the Mormon Trail between Garden Grove and Council Bluffs. Today it is marked by a tall monument on a nine-acre state presertve which contains exhibits, historical markers, and a reconstructed log cabin. However, little remains from the 19th century except a cemetery memorializing the 300 to 800 emigrants who died while passing through or residing in the community.
Joseph was one of a dozen Adair/Mangum to die here with their grandmother Rebecca Brown Adair.