Here is Mary Frances's first marriage - so now you have her fathers name!
24 Dec 1911
St John the Divine Kennington
William George Ware 23 widower horsekeeper of 55 Sultan Street father Henry Ware, horsekeeper
to
Mary Frances Burns 24 spinster of 55 Sultan Street , father Sidney Burns, bottle sorter
Both signed
Witnesses: E Budd? and P Shaw? (neither very easy to read)