who was the last celtics player with 20 points and 20 rebounds in an nba game before 1975

Dave Cowens scored 28 points when grabbing 20+ boards in Game 3 of the 1974 Eastern Conference Finals versus the Knicks on April 19, 1974.

Interpreted as:

Who was the last celtics player with 20 or more points and 20 or more rebounds in an NBA game before 1975?

	NAME	DATE	PTS	REB	TM		OPP	MIN	AST	STL	BLK	FGM	FGA	FG%	FTM	FTA	FT%	TS%	OREB	DREB	PF
1	Dave Cowens D. Cowens	4/19/1974	28	22	BOS	vs	NYK	47	4			12	29	41.4	4	4	100.0	45.5			5
2	Dave Cowens D. Cowens	3/27/1974	22	22	BOS	@	PHI	41	5			10	19	52.6	2	2	100.0	55.3			5
3	Dave Cowens D. Cowens	3/22/1974	21	21	BOS	vs	POR	37	5	2	6	9	17	52.9	3	4	75.0	56.0	4	17	3
4	Dave Cowens D. Cowens	3/10/1974	24	20	BOS	vs	LAL	45	6	1		12	25	48.0	0	0		48.0	5	15	3
5	Dave Cowens D. Cowens	2/27/1974	23	23	BOS		BUF	42	4			9	17	52.9	5	7	71.4	57.3	1	22	5
6	Dave Cowens D. Cowens	2/10/1974	20	20	BOS		MIL	48	2		0	8	23	34.8	4	5	80.0	39.7			3
7	Dave Cowens D. Cowens	1/13/1974	29	22	BOS	@	ATL	43	10			12	19	63.2	5	6	83.3	67.0			4
8	Dave Cowens D. Cowens	12/31/1973	23	24	BOS	vs	PHI	47	5			11	25	44.0	1	2	50.0	44.4			4
9	Dave Cowens D. Cowens	12/16/1973	35	21	BOS	@	LAL	46	8	0		12	26	46.2	11	11	100.0	56.7	9	12	5
10	Dave Cowens D. Cowens	12/14/1973	30	20	BOS	@	HOU	48	5			13	21	61.9	4	5	80.0	64.7			4
11	Dave Cowens D. Cowens	12/1/1973	26	22	BOS	vs	CHI	46	7	1	0	12	18	66.7	2	2	100.0	68.9	5	17	3
12	Dave Cowens D. Cowens	11/17/1973	27	21	BOS	@	KCO		3			9	17	52.9	9	9	100.0	64.4			5
13	Dave Cowens D. Cowens	11/16/1973	26	20	BOS	vs	MIL	47	5		1	13	28	46.4	0	0		46.4			4
14	Dave Cowens D. Cowens	4/4/1973	20	25	BOS	@	ATL	40	5			9	18	50.0	2	4	50.0	50.6			3
15	Dave Cowens D. Cowens	3/28/1973	22	22	BOS	vs	BAL	38	4			11	18	61.1	0	1	0.0	59.7			1
16	Dave Cowens D. Cowens	3/25/1973	28	22	BOS	@	HOU					13	18	72.2	2	2	100.0	74.2			3
17	Dave Cowens D. Cowens	3/20/1973	20	32	BOS		HOU	45	9			10	30	33.3	0	1	0.0	32.9			2
18	Paul Silas P. Silas	3/18/1973	24	21	BOS	vs	KCO	41	3			10	20	50.0	4	4	100.0	55.1			0
19	Dave Cowens D. Cowens	3/8/1973	32	21	BOS	@	PHX	49	5			12	26	46.2	8	8	100.0	54.2			3
20	Dave Cowens D. Cowens	1/17/1973	35	20	BOS	vs	POR	46	4			16	25	64.0	3	4	75.0	65.4			2
21	Dave Cowens D. Cowens	12/26/1972	38	20	BOS	vs	NYK	46	4			17	27	63.0	4	5	80.0	65.1			5
22	Dave Cowens D. Cowens	12/19/1972	21	23	BOS	@	GSW	46	6			9	18	50.0	3	3	100.0	54.3			3
23	Dave Cowens D. Cowens	10/21/1972	20	21	BOS	@	BAL					7	19	36.8	6	11	54.5	41.9			4
24	Dave Cowens D. Cowens	10/13/1972	26	24	BOS	vs	LAL	44	5			12	28	42.9	2	2	100.0	45.0			4
25	Dave Cowens D. Cowens	4/9/1972	26	20	BOS	@	ATL	46	2			11	17	64.7	4	6	66.7	66.2			5