Hi Sarah.For a friend, I am researching an extended PACHECO / MOURA family tree.
The MOURA side involves a couple and their 5 children:
Francisco MOURA and Philomena ROSE from Sao Miguel CH: Elise "Elsie" MOURA (b~1893) who married Antonio PACHECO from Sao Miguel
Francisco MOURA who moved to CA
Manuel MOURA who moved to Brooklyn, NY (possibly had MOURA relatives there)
Rosalina MOURA who married Charles PERRY (probably PEREIRA)
Carolina MOURA who married Frank MEDEIROS.
The three sisters, Elsie PACHECO, Rosie PERRY, and Carrie MEDEIROS all lived their married lives in Cambridge, MA. (I think all died in the 1970's and 1980's.) (I think each lost their husband earlier than they should have.)
Since Concord is not that far from Cambridge, I wonder if this family and your family were somehow related.