Not much help with a descendant, but Lucy died under the surname DENINGTON
39259/1968 DENINGTON Lucy Manning
Parents James Charles & Lucy Ann
At ST LEONARDS
For many years, from the 1930's to 1949 the electoral Rolls show she shared addresses with Alexander CARSWELL, in the Petersham area. She was enrolled in the name DENINGTON.
Alexander CARSWELL was a butcher.
He died
8846/1950 CARSWELL Alexander
Parents Alexander & Elizabeth
At PETERSHAM
Sue