Harry Hudson Rodmell
After serving with the Royal Observer Corps during World War II, his graphic design work was largely replaced by commissioned oil paintings of new vessels. These were often produced from plans so that a painting could be completed before the vessel was launched.
Canadian Forces Air Navigation School
Canadian pilots in the Royal Flying Corps (RFC) learned rudimentary navigation during World War I, but separate observer schools were not introduced until 1918. Right up until the outbreak of World War II there was still no category of air observer in the Royal Canadian Air Force (RCAF).