Vincent F. Hopper/ Cedric Gale/ Ronald C. Foote/ Benjamin W. Griffith
(2)
Benjamin W. Griffith (EDT)/ Vincent F. Hopper/ Cedric Gale/ Ronald C. Foote
(1)
David Langford/ R. F. Fellows/ M. R. Hancock/ A. W. Gale
(1)
Vincent F. Hopper/ Cedric Gale/ Benjamin W. Griffith
(1)
W. F. Gale/ T. C. Totemeier/ Colin James Smithells
(1)