Notes On July 30 1905, Percy Moritz Seiffert, 25, Bachelor, Accountant, married Violet Mary Russell, 21, spinster, in the parish of St Giles without Cripplegate.
The birth of a Denis Seiffert was registered in 1919 in Medway, Kent, mothers maiden name Russell. A brother Douglas was born prior to Denis in 1913.
On April 15 1931, Master Dennis Seiffert (as per passenger list), 11, departed for Australia on board the Largs Bay, address given as 115 The Strand W C 2.
Den[n]is served in WWII (Source: NAA RecordSearch):
SEIFFERT DENNIS : Service Number - 22508 : Date of birth - 03 Sep 1919 : Place of birth - CHATHAM ENGLAND : Place of enlistment - FREMANTLE : Next of Kin - ESTHER