I am looking for information about my GG-grandfather, John McGuire who was born in Halifax, Nova Scotia I think in Feb of 1874 (based on 1900 US Census data).
By 1892, John McGuire was in Lowell, MA (not sure how he got there) where he had his first son, John (who died in infancy). In, 1893, he had his second son, Charles. Around this time he was married to the mother of his children, Ellen "Nellie" McCullough. By 1895, he was in New Hampshire where he had his daughter, Eileen Mary Margaret. In 1898, he was still in NH, definitely Manchester, where he had his last son (my G-grandfather), John Mary. Sometime between 1900 (when he was in Manchester) and 1910 (when he and his wife were no longer living with their children according to the US census), John and Nellie both disappear from the paper trail. Or, at least, I can't find them. John is often listed as a "coachman" or "horseler" on his children's marriage documents.
Any information you may have, or suggestions of resources to scour would be much appreciated.