I was at the Palace v Millwall game on 19th March 1969. A midweek game re-arranged because of a previous postponement, the game was a promotion 6-pointer in Div 2, a S London derby and played in front of over 32,500 fans, and with six goals in a Palace 4-2 win, it was definitely one of the great evenings in Palace history, and ultimately helped Palace to promotion at the end of the season. And the evening's entertainment was helped by the refereeing of Roger Kirkpatrick who was at his brilliant and eccentric best. Most of the fans went home totally satisfied!
Palace 5 Man Utd 0, Dec 1972, another great day in Palace history, although alas I wasn't there to see it. Referee was John Hunting.