https://www.rugbyleagueproject.org/seasons/nswrfl-1975/round-9/north-sydney-bears-vs-canterbury/summary.html
NS: 23. Ron Harre (see 0:24 - Harre says 7 in BL, but looking through Norths team lists, he wore 23 for other games. Norths players kept the same numbers for each player all year.), 11. Bill Hamiltom (see 1:10). All other numbers are correct & can be seen in the video, except replacement.
CB: 19. Garry Hughes (see 0:16), 21. Peter Cassilles (see 0:46). All other numbers for each player are correct & can be seen in the video.
https://www.youtube.com/watch?v=_bUkzB_jsf8