Chaidh Morse a phòsadh Lucretia Pickering Walker air 29 Sultain, 1818, ann an Concord, New Hampshire. Bhàsaich i air 7 Gearran, 1825, goirid às deidh dhaibh an treas leanabh aca a bhreith (Susan b. 1819, Charles b. 1823, James b. 1825). Phòs e an dàrna bean aige, Sarah Elizabeth Griswold air 10 Lùnastal, 1848, ann an Utica, New York agus bha ceithir clann aca (Samuel b. 1849, Cornelia b. 1851, Uilleam b. 1853, Edward b. 1857).
Utica