[Merry]

I wonder who this is?

Could be Alfred's mother using a middle name and knocking off a few years, or could be another Mrs H-W:

Incoming passenger list:

Arrived Plymouth Nov 16 1938, S S Ormonde from Brisbane

Mrs S Harcourt-Wybert aged 49 UK address 26 Mountaire Court, Highfield Ave W9 London. Household Duties, country of permanent residence England.

I looked at the Erolls for 26 Mountaire Court:

1937 Harry Charles Summerton and Dorothy Summerton (both b 1903 from 1939 Reg)

1937 and 1939 James Gibson and Isabella Mitchell Gibson (b 1866 and 1873 respectively and still at that address Sept 1939)