Probably:

The birth of Mabel Emily Tinney was registered in Woolwich, London, England during the first quarter of 1880. Her parents were Charles Ernest Tinney and Kate Marian Tinney, nee Lemon. She was married to Norman Mawson in St. Mary's Church in Wimbledon, Surrey, England on 05 September 1908.

Wills and Administrations, 1915
Mawson, Mabel Emily, of 1a, Clifton-street, Norland-road, Holland Park, Middlesex (wife of Norman Mawson), died 30 July 1915 at Camberwell House, Camberwell, Surrey.
Administration London 21 October to the said Norman Mawson, laundry proprietor.    Effects £179 6s. 7d.