Thanks for all of the trouble you have been to in looking for my Hackney Denbys. I especially appreciate the information regarding Thomas's first marriage. I have since discovered that Susan (Susanna) was Thomas Denby's second (presumably) wife. She was born Susan Killingback in 1821 and was married to a George Gazeley/ Gaisley)(Dec 1842, Stepney) before marrying Thomas Denby (June 1855, Bethnal Green). I am not sure how many children Thomas & Susan had together. In the 1881 census the Mary Hillingbrok [sic] is in fact my great-grandmother, Mary Killingback, Susan's great niece, while Mary Tagg (nee Killingback)is Susan's sister. Mary & Susan were the children of William Killingback (a cattle dealer) and Elizabeth Terrell.