Samuel Johnston,son of Larkin and Mary (Polly) Johnston moved to Parke County IL, were he married Jane Kelsey on 13 Dec 1831. He died in 1886 at the age of 81. Larkin and Mary are listed as his parents. A lot of information regarding Samuel may be found at the following site:
http://www.indianagenweb.com/inparke/Deaths/DeathBookD-1/Boo...