https://www.rugbyleagueproject.org/competitions/amco-cup-1977/round-1/norths-devils-vs-western-suburbs-magpies/summary.html
BN: 16. Draper, 15.O'Sullivan. Bench: 17. McTigue, 6. Clarke, 12. Doug Drew.
https://www.rugbyleagueproject.org/players/doug-drew/summary.html
WS: 18. Bourke.
Source: see attached photo. It is not from a known source, but it would seem as though someone at the game wrote down the changes on the program. I would say it would be correct, but it is up to you if you want to use it.