That page is a nice tribute, and a reminder that it's not just about astronauts. Far more people ultimately died on the ground.
However I would note that many of those deaths postdate the Apollo program, and some are only tenuously linked with space travel at all:
"10 June 1981 - Scott Maness, firefighter with U.S. Fish and Wildlife Service, died at Kennedy Space Center after becoming trapped during a firefight"