how many nhl players have won multiple hart trophies before the age of 25

George Boucher didn't win the Hart Trophy before turning 25.

	NAME	HART	GP	G	A	P	PIM	GWG	OTG	TOI/GP
1	George Boucher G. Boucher	0	83	32	24	56	183	3	0
2	Morley Bruce M. Bruce	0	7	0	0	0	0	0	0
3	Bert Corbeau B. Corbeau	0	34	10	10	20	89	1	0
4	Corb Denneny C. Denneny	0	30	26	12	38	23	2	0
5	Gerry Geran G. Geran	0	4	0	0	0	0	0	0
6	Sammy Hebert S. Hebert	0	2	0	0	0	0	0		40:00
7	Harry Meeking H. Meeking	0	35	18	13	31	60	1	0
8	Reg Noble R. Noble	0	85	82	29	111	181	8	0
9	Alf Skinner A. Skinner	0	37	25	10	35	60	1	0
10	Phil Stevens P. Stevens	0	4	1	0	1	3	0	0
11	Frank Nighbor F. Nighbor	0	2	1	2	3	3	0	0
12	Jack Adams J. Adams	0	25	3	3	6	78	0	0
13	Amos Arbour A. Arbour	0	11	8	2	10	12	2	0
14	Babe Dye B. Dye	0	93	104	26	130	102	16	2
15	Jack MacKell J. MacKell	0	45	4	2	6	54	0	0
16	Mickey Roach M. Roach	0	21	11	2	13	4	1	0
17	Frank Brophy F. Brophy	0	21	0	0	0	0	0		59:29
18	Howard Lockhart H. Lockhart	0	8	0	0	0	0	0		46:15
19	George McNaughton G. McNaughton	0	1	0	0	0	0	0	0
20	Jake Forbes J. Forbes	0	25	0	0	0	0	0		60:51
21	Billy Stuart B. Stuart	0	108	20	17	37	80	3	0
22	Dave Campbell D. Campbell	0	2	0	0	0	0	0	0
23	Billy Boucher B. Boucher	0	71	56	18	74	121	13	1
24	Frank Boucher F. Boucher	0	24	8	2	10	4	1	0
25	King Clancy K. Clancy	0	213	54	46	100	346	12	1