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According to our Carroll family bible, a James Carroll was one of thirteen children born in Lake Verde PEI to Patrick Carroll and Mary Rice. Oral history says that all the males had the middle name Rice. At the Genealogy Notes of Ft. Augustus PEI website, (James' brother) 'John Carrol was baptized to Pat Carrol and Mary Rice' on Aug 25, 1834 at St. Dunstan's Church. If your James was married in 1854, this would be the right timeframe.
The brother I'm trying to follow is Thomas Rice Carroll who was the youngest of the 13 children and who was born Sept 30, 1854. Many of his siblings came to Boston around 1880. Thomas, his wife Mary, and mother Mary left PEI on May 10, 1883 and settled in Chelsea, MA. His father, Patrick, had died in PEI on Apr 6, 1866 and is buried in Vernon River Cemetery. In the bible it says that James R. Carroll died in Detroit, Michigan on June 22, 1934 and was buried in Calvary Cemetery St. Louis, Missouri with his brothers John, Dennis and Andrew. The list of Carrolls from the Calvary Cemetery website does not have any of those names. I haven't pursued it too much since this is an offshoot of my line and all my research at this stage has been through the internet.
Let me know if this could be your James Carroll!