The rootsweb archive seems to have a few connected postings, someone else has been tracing Love families in Wigtownshire. The full census entry for 1951 was posted here which includes Rebecca Love aged 21, an unmarried dairy maid, born mochrum.
http://archiver.rootsweb.ancestry.com/th/read/sct-wigtownshire/2006-03/1142700308The Love family in Mochrum seems to be that of John Love and Rosanna McBratney. It has been nicely summarised in his 1855 death entry from Wigtownshire Pages.
"Love, John 75y - Mochrum - #28 - John LOVE, Pauper, formerly Agricultural Labourer, 75 years. Born in Antrim, Ireland, lived in Mochrum over 50 years. Parents: William LOVE deceased & Catherine CAMPBELL deceased. Married: Rosanna McBRATNEY. Children: Ann, 42. David, 41. Jane, Died at age of 22 in 1838. John, Died at age of 31 in 1850. Rosannah, 35. William, 33.Catharine, 31. Margaret, 29. Agnes, 27. Alexander, 25. James, 25. Died on Oct 21, 9:30am at West Barr, Mochrum, of Catarrh and Chronic Rheumatism, 3weeks. Certified by James McCormick, MD-last saw deceased Oct 17. Buried in Mochrum Churchyard, certified by Alexander Clave, Undertaker. Signed: David LOVE, son. Registered on Oct 23 at Mochrum, D. M. Macfarlane, Registrar."
Rebecca could have been the child of one of the children listed.
Kirsty