Who was the first NHL player with 7 points in a playoff game?

Wayne Gretzky becomes the first player in NHL history with 7 points in a playoff game. He did it again in 1985 & 1987.

Interpreted as:
Who was the first NHL player with 7 or more points in a playoff game?
NAMEDATETMOPPPGA+/-PIMPPGPPASHGSHAGWGOTGSS%TOI/GP
1Wayne Gretzky
Wayne Gretzky
4/17/1983
EDM EDM
@ CGY @ CGY
7
4
3
6
0
0
0
1
2
1
0
5
80.0
2Wayne Gretzky
Wayne Gretzky
4/25/1985
EDM EDM
@ WIN @ WIN
7
3
4
5
0
0
1
2
0
0
0
7
42.9
3Wayne Gretzky
Wayne Gretzky
4/9/1987
EDM EDM
vs. LAK vs. LAK
7
1
6
1
0
0
5
0
0
0
0
1
100.0
4Patrik Sundstrom
Patrik Sundstrom
4/22/1988
NJD NJD
vs. WSH vs. WSH
8
3
5
5
2
0
3
0
0
0
0
3
100.0
5Mario Lemieux
Mario Lemieux
4/25/1989
PIT PIT
vs. PHI vs. PHI
8
5
3
5
0
2
1
0
0
0
0
9
55.6