Henson Morris

Alan M Henson and Elizabeth M Morris married in Peterborough area in 1962, Alan is the son of William Henson and Phoebe Hales married Peterborough area 1919. Williams parents are my great grandparents (William Henson and Betsey Ann Hill) my great grandfathers mother was Martha Ann Henson (no father named) it is her parents I am looking for. Can anyone help!!!