I have several autographed records by Canadian artists from the '70s, and a few others:
Kelly Jay, founder of Crowbar, autographed my copy of their "Bad Manors" album (inner gatefold and label)
Murray McLauchlan autographed "Whispering Rain"
Bill Henderson, founder of Chilliwack, autographed several of their singles for me, including his very first single as a teenager in The Collectors
MacLean & MacLean (brothers Bryan and Doug), comedians from Nova Scotia, autographed their "Toilet Rock" album
Peter Foldy, now a screenwriter and director in Los Angeles, sent me an autographed copy of his CD compilation of 1970s singles
Victor Borge, Danish pianist and comic, autographed my copy of his first 78RPM album from 1943
Paul White, who was the Capitol Records A&R executive who signed The Beatles to Capitol in Canada before the US division would even look at them, signed my copy of the Canadian Beatles album, "Long Tall Sally"
Carmine Appice, drummer, signed my single of "You Keep Me Hangin' On" by Vanilla Fudge
Tommy Chong signed my 8-track tape of Cheech & Chong's Wedding Album
Rick Derringer signed his "Derringer Live" album for me, but it was stolen years ago
I might have a couple of others, but they aren't coming to mind right now.