Hi Gazza
www.familysearch.org has a marriage on 21 July 1839 at St Nicholas, Brighton - Sarah Caroline Fairhall / John Morley. Fathers John Morley & William Fairhall
Have you got the 1891 census for John George Loew? He was in Brighton (50 Gladstone Place) with his aunt & uncle (William & Sarah A Taylor) also Sarah A's father - John Morley, widower, 72, retired bricklayer, b. Brighton. Also Sarah A's brother, Edward (41)
In 1901 JG was lodging with a family by the name of Hills in Brighton.
Found John & Caroline Morley in 1841 - both aged 20 with a 1 yr old daughter Sarah - so the 1839 marriage looks promising?
Dazey