I am attempting to find information on a Mercy (Marcy) Ricker. She was born somewhere in New Hampshire on May 14, 1834. She married a (Dummer) Moody Knight on May 11, 1853 of Poland, Maine. She died on Jan 7, 1892 in Maine. In spite of the above information I can not find any information about her parents or to prove her maiden name was Ricker. Can anyone help me?