This entry might be an error: The only source found for Horace is the Kalloch Family Genealogy, p.219, by Rev. Peter Tufts Richardson. In the Edward Kalloch Gould manuscript of Kalloch genealogy on p.21 Horace's name was penned in and then crossed out by E.K.G. Horace is not included on the 1850 census, but the other children are.