Going by the signatures of the witnesses of the marriage of Sarah Lowe Rugg
John Robert Lowe is probably the J R Lowe that married Elizabeth Kemble in 1845 Newington - His father is listed as John Lowe occ Hatter - JRL is also a Hatter. Census has JRL born c1824 Southwark.
Maria Ann Lowe married Frederick Henry Culver June 1845 - father also John Lowe occ Hatter, he was possibly a witness. Census for Maria gives her place of birth as Bridgewater, Somerset c1821
