http://stats.rleague.com/rl/scorers/games/197001.html#0616
It was against Canterbury, at Belmore, first round 1970.
We lost 16-14, the Ref was Keith Page, and according to Andrew Moore's book
The Mighty Bears! page 188 : "Denis Cubis ......recalled that whistle blower Keith Page, was 'off the planet' that day, abusing Norths players and making little effort to disguise his partiality for Canterbury"
Northern bear, on the mightybears.com website was there, but he hasn't got back to us yet as to his recollections!:
http://www.mightybears.com/viewtopic.php?t=4164&sid=2d6356dd885ab7f8586a44a3b535c94e
Ken Irvine, as captain cracked the sh*ts, and led the players off after just before half time after John McDonell [a later Canterbury Grand Final captain] was sent off for kicking in response to the Blue and White free hit going on, Akka Forbes talked them in to going back on, we finished the match with 11.
As to the team list, i don't have round 1 of the 1970 The Rugby League News, i do have round 3 [for April 11-12] and a Wills Pre Season Round of the Rugby League News [February 27-April 1].