He and Susannah married when she was just 15, on May 24, 1829, and two years later they moved to the Mexican province of Texas, where they became settlers in the Dewitt Colony.
Dia dan Susannah Dickinson menikah ketika Susannah baru berumur 15 tahun, pada tanggal 24 Mei 1829, dan dua tahun kemudian pasangan ini pindah ke provinsi Texas di Meksiko, dimana mereka menetap di koloni Dewitt.