Henry Ballou Meagan was an active member of the Neil’s Creek Anti-Slavery Society in 1842. On February 25, 1843, Ballou was named treasurer of the NCASS; two months later, on April 25, he married Jane K. Mattley, daughter of English immigrants John and Elizabeth “Betsy” Key Mattley.

The map gave no indicaion of its operations between Evansville, Indiana, and Cincinnati, Ohio.