At this point in time, the Courant reported on the weekly church schedule, which included Sunday services, Sunday schools, and religious meetings. The schedules I’ve so far found report exclusively on established churches, but the search continues.
An 1855 map of Hartford shows Hartford’s boundaries as they are today. In 1879, the Town of Hartford was approximately 16.5 square miles in area, and the City of Hartford comprised 10 square miles with the town. Based on Collins’s 1915 description of the area lacking a Sunday school, Metcalf would have surveyed all of today’s Asylum Hill, most if not all of the West End, the northern section of Frog Hollow, and the southern section of Upper Albany. In the specific example of Maria Metcalf’s survey, which was apparently conducted all the way to the Hartford city line, she likely didn’t go west of Sigourney Street.