Sir John Pennefather, 1st Baronet
Pennefather was born as De Fonblanque Pennefather at Perth, Australia, the son of Kingsmill Pennefather by his second wife Jane Catherine Patricia de Grenier de Fonblanque, eldest daughter of Thomas de Grenier de Fonblanque, British Consul-General and Chargé d'Affaires in Serbia and Joan Catherine Barrington, and granddaughter of Sir Jonah Barrington. He was returned to Parliament for Kirkdale division of Liverpool at a by-election in February 1915, and held the seat until he stood down from the House of Commons at the 1929 general election.
Pennefather married Madeline Emily Melesina Stewart, daughter of Sir Robert Prescott Stewart on 28 Apr 1886. They had no children. He died on 8 August 1933, aged 77, when the baronetcy became extinct.
- Craig, F. W. S. (1983) . British parliamentary election results 1918–1949 (3rd ed.). Chichester: Parliamentary Research Services. p. 178. ISBN 0-900178-06-X.
- M. Stanton and S. Lees, Who's Who of British Members of Parliament, volume III (Harvester, 1979) page 277.
- "No. 32918". The London Gazette. 14 March 1924. p. 2229.