Robert Howard married Rosanna Mullay on July 17, 1843, Michael Conlan and Bridget Mullay witnessed. Fr. Fitton performed sacrement and recorded it at Christ's church, as well as reported it to the Worcester clerk (Book 2 page120). The fact that he reported it to that clerk tends to indicate that the marriage took place there, as many New London and Norwich CT and Northhampton and Saxonville MA marriages went unreported (to Worcester). As always don't believe the spelling, if it sounds close...
The marriage is early enough to imagine their children getting married in the 1860s or 1870s.