Trying to Locate Information on the Crocketts of Chelsea MA Who Emigr

Trying to locate information on the Crocketts of Chelsea, MA who emigrated from Loch Lamond, St. John, New Brunswick, Canada, and also the Canadian line. Original settler was George Crockett from Ireland who married Elizabeth Chambers from Scotland in St. John, NB. Daughter Mary married Joseph Seymour and Elizabeth lived with her until her death in 1905.