I am trying to ascertain the relationship between three people with the surname Homer for my cousin in America. They are connected to Isabel Payton, her grandmother via the female line. Isabel's aunt Martha Hay (1881-1974) married William Homer (1864(3?)-1942) . My cousin does not know of any children they might have had they did bring up two children with the surname Homer but we have been unable to confirm their parentage. During my research I have been unable to locate William in Censuses beyond 1881 until 1939 Register and cannot find Martha in 1911 when she was still living with her parents. They lived in Halesowen.
From research I have done using the 1921 Census, Ancestry and Family Search I have the family on holiday in Llandudno. Living with William and Martha are Barbara Joan Homer age 8 born Old Hill October-December 1912and her sister Margaret Pauline age 5 born 23rd February 1916. They are listed as grandaughters and the parents are listed as being alive. I have managed to locate birth information confirming the dates and on it the parent (mother) has the surname Cartwright. Both girls married in 1937 Barbara to a John Caleb Hogg and Pauline to Eric Gordon Coombes. I also found death records, Barbara died October 1976 in Birmingham, Pauline died December 1979/January 1980 in Walsall.
William and Martha are both on Connection but not matched up, the two children are not. Is there anyway of sourcing their parents. Do Martha and William have a son who had a relationship with someone called Cartwright or is there another answer?