There is very little information of this competition, but I have a list of players who played in this competition & how many each of them played for Canterbury from the annual report. So, from that list, a few newspaper clippings & the team listings, I have come up with a most likely list (IMO).
Rd 1 V St.George
https://www.rugbyleagueproject.org/competitions/wills-cup-1974/round-1/canterbury-bankstown-vs-st-george-dragons/summary.html
Dowling, Rogers, Lowther, Murphy, Cutler, Winchester, Young, Peek, McDonnell, Connell, Tatana, Noonan, Charlton. Repl. Thomas & M.Hughes.
Rd 2 V Cronulla
https://www.rugbyleagueproject.org/competitions/wills-cup-1974/round-2/canterbury-bankstown-vs-cronulla-sutherland-sharks/summary.html
Dowling, Rogers, Lowther, Murphy, Cutler, M.Hughes, Young, Stringer, Peek, Thomas, Charlton, Phillis, Noonan. Repl. Graeme Hughes & Gillogly.
Rd 3 V Manly
https://www.rugbyleagueproject.org/competitions/wills-cup-1974/round-3/manly-warringah-sea-eagles-vs-canterbury-bankstown/summary.html
Dowling, Rogers, Lowther, Cutler, Murphy, Winchester, Young, Peek, McDonnell, Thomas, Tatana, Phillis, Noonan. Repl. Connell, Stringer & Cole.
Rd 4 V Norths
https://www.rugbyleagueproject.org/competitions/wills-cup-1974/round-4/north-sydney-bears-vs-canterbury-bankstown/summary.html
Anderson, Rogers, Murphy, Cutler, Cole, Winchester, Young, Cassilles, McDonnell, Connell, Tatana, Phillis, Charlton. Repl. M.Hughes, Ron Taylor & Graeme Hughes.
Anderson played 1 game & we know it was R4
Cassilles played 1 game & we know it was R4
Charlton played 3 games & we know they were R1,2 & 4
Cole played 2 games & we know 1 was R4. I am certain the other R3, because he was suspended for R1+2.
Connell played 3 games. We know 1 was R1. He pulled out of the R2 game, so I am sure he played in R3+4
Cutler played all 4 games
Dowling played 3 games & we know they were R1+2+3
Gillogly played 1 game. I am GUESSING it was R2 as a replacement.
Howard did not play any games.
Garry Hughes is listed as having played 2 games & Graeme Hughes 0. I believe the club got them mixed up & Graeme played 2 games because according to DM 1-3-1974, it said that Stringer & Graeme Hughes were to play half a game each. It doesn't look like Graeme was available for R1, but was for R3+4. I am GUESSING he was a replacement in R4.
Mark Hughes played 3 games. He was named in R3, but was replaced by Winchester, so he played R1+2,4.
Lowther played 3 games & we know they were R1+2+3.
Murphy played in all 4 games.
McDonnell played 3 games & we know they were R1+3+4.
Noonan played 3 games & we know they were R1+2+3.
Peek played 3 games & we know they were R1+2+3.
Phillis played 3 games. He was named in R1 but pulled out, so he played in R2+3+4.
Rogers played in all 4 games.
Stringer played 2 games. We know he played in R2. I am GUESSING that he was a replacement in R3 after having played in R2.
Tatana played in 3 games & we know he played in R1+3+4.
Ron Taylor played 1 game. He was a hooker. Peponis was the 2nd rated hooker & was available for R1+2+3, but didn't play. He wasn't available for R4, so I am GUESSING that Taylor played in R4.
Thomas played in 3 games. Named as a replacement in R1, Howard didn't play in R2, so GUESS that Thomas promoted to start & named to play in R3.
Winchester played in 3 games. He was originally named in R2 before pulling out, so he played in R1+3+4.
Young played in all 4 games.
Peponis did not play any games.
Thanks Ted can you please check your Rd 2 team it does not seem to be correct based on your comments eg Harold Stringer is missing but you state he played in Rd 2, you list Winchester but state he pulled out.
fixed