I'm researching Thomas Rice Carroll born 1854 in PEI, emigrated to Chelsea MA in 1883. He was the youngest of 13 children of Patrick Carroll and Mary Rice (both born in IRE) and I know he had a brother MICHAEL.Another brother James died in Detroit, MI and was buried in St. Louis MO with 3 more brothers John, Dennis and Andrew. A sister Elizabeth was born in 1843 and died in Chelsea. Chelsea is very close to Somerville so the location and the dates of birth of my Carrolls could tie in with your Michael. If any of the above names ring a bell, please post a reply.