Velcro
Swiss electrical engineer George de Mestral invented his first touch fastener when, in 1941, he went for a walk in the woods and wondered why Burdock seeds clung to his coat and dog. He discovered it could be turned into something useful. He patented it in 1955 and subsequently refined and developed its practical manufacture until its commercial introduction in the late 1950s.
Walter Harris Callow
Walter Harris Callow (1896–1958) was a Canadian veteran who invented the accessibility bus for veterans returning from WW2 and others in wheelchairs (1947). He designed and managed the Walter Callow Wheelchair Bus, while he himself was blind, quadriplegic and, eventually had both legs amputated. Callow planned trips for disabled veterans, tours of the countryside, picnics, sporting events, art classes and other activities. He was born in Parrsboro, Nova Scotia and became a resident of the Camp Hill Military Hospital for twenty years.