https://www.rugbyleagueproject.org/seasons/nswrfl-1983/round-26/easts-vs-south-sydney-rabbitohs/summary.html
ES: 1-8 are correct, no. 13 is Terry Regan (see 6 sec), no. 20 is James Cutler by default (see 1:32), no. 27 is Dale Garrett as he scores a try (see 1:11 & 1:46)
Somebody else may be able to check the rest of the Easts forward pack as Regan is definitely wearing 13 & not 10.