OK I'll go ahead and "publish" first and Frisky or Gabby or anybody else interested can have their two pennorth:
"Original" Club, October 1883 to April 1973 ...
Most Tries in a Season = 34 by Allan Snowden, 1956-57
Most Goals in a Season = 151 by Billy Langton, 1958-59
Most Points in a Season = 380 by Billy Langton, 1958-59
Most Tries in a Match = 7 by George Dennis v Bradford Northern, League, 20 January 1934
Most Goals in a Match = 14 by Albert Goldthorpe v Dudley Hill, YRU Cup, 1 March 1890
Most Points in a Match = 46 by Albert Goldthorpe v Dudley Hill, YRU Cup, 1 March 1890 (see below)
Most Apps = 682 by Albert Goldthorpe, 1888-1910 (I've gone with Gabby's figure on this, certainly beats the 579 I have for Geoff Gunney)
Most Capped Player = (Great Britain) 11 by Geoff Gunney, 1954-65
Highest Attendance = 24,700 v Wigan, Challenge Cup 3, 15 March 1924
Regarding most points in a match, comparing scoring feats when we are going back this far is fraught with danger, when methods of scoring - not to mention the game itself - were very different to now.
Hunslet scored 15 tries and 14 goals in that match in 1890, and that's how scores in the Yorkshire Rugby Union were published at that time (in actual fact it was published as 14 goals and 1 try because converted tries didn't count towards the total

).
However back in October 1886 the RFU had ratified a "new" system of three points for a goal and one point for a try (which the YRU chose to ignore, possibly because they were already at loggerheads with the RFU over player payments which would cause the breakaway nine years later). Albert Goldthorpe scored four tries as well as the 14 goals in that match, which adds up to 46 points using the unadopted RFU scoring method in use at the time.
History lesson over

... "new" club records later ...
Edited by Hawkwindbag, 21 September 2012 - 08:51 AM.