He was wounded twice, once by a bullet at the Abbaye d'Ardenne in Normandy and once by a grenade near the Leopold Canal, losing his right leg below the knee.
In 1967, the Government of Canada named Chadderton to the position of Executive Secretary to the Canadian Pension Survey Committee along with Hon.
Chadderton played a leading role in the campaign against the controversial NFB documentary, The Kid Who Couldn't Miss and in pressuring the Canadian War Museum to rewrite its Bomber Command exhibit.
[1] In 1992, he led the fight to put pressure on the Canadian Broadcasting Corporation (CBC) from re-broadcasting a controversial documentary series it commissioned called The Valour and the Horror.
He is survived by his wife, Nina, sons Bill (Marlyn), Brian (Donna), stepson Gleb, stepdaughter Sandra (Clare) as well as several grandchildren and great-grandchildren.