Complex sentence: Walter Harris Callow (1896-1958) was a Canadian veteran who designed and managed the Walter Callow Wheelchair Bus, while he himself was blind, quadriplegic and, eventually had both legs amputated.
Split into simpler sentences: Walter Harris Callow (1896-1958) was a Canadian veteran who invented the accessibility bus for people in wheel chairs. He designed and managed the Walter Callow Wheelchair Bus, while he himself was blind, quadriplegic and, eventually had both legs amputated.