Looking for John Crawford Littleton Maine

I am looking for any information on John Crawford, Littleton, ME. Father George Crawford and Mother Jane Slinong? Crawford. He purchased land in Littleton, ME June 25, 1859. He married Elizabeth Gartley, from Watstn Settlemet, NB Canda. He had two brothers and a sister Possible more.Brother: James and William and a Sister Mary Jane Crawford. If you have any information about this family I would appreciate it.