Hoyt Wilhelm was the oldest in 1966. He was 42 years old.

	NAME	AGE	SEASON	TM	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS	WRC	WRAA	WOBA	WRC+	BRAA
1	Hoyt Wilhelm H. Wilhelm	42	1966	CWS	46	8	0	1	1	0	0	0	0	0	4	0	0	8	2	1	0	0	0	0	.125	.125	.250	.375	0	-0.9	.161	5	-0.8
2	Lew Burdette L. Burdette	39	1966	CAL	54	8	0	1	0	0	0	1	0	0	3	0	0	8	1	0	0	0	0	0	.125	.125	.125	.250	0	-1.2	.111	-31	-1.2
3	Smoky Burgess S. Burgess	39	1966	CWS	79	67	0	21	5	0	0	15	11	1	8	0	0	80	26	5	0	1	2	0	.313	.413	.388	.801	12	3	.354	137	3.2
4	Robin Roberts R. Roberts	39	1966	TOT	24	26	2	3	0	0	0	0	4	0	9	0	0	36	3	0	6	0	0	0	.115	.233	.115	.349	1	-3.3	.181	13	-3.7
5	Joe Adcock J. Adcock	38	1966	CAL	83	231	33	63	10	3	18	48	31	0	48	2	2	265	133	31	0	3	6	11	.273	.355	.576	.930	46	18.4	.395	163	18.4
6	Roy Face R. Face	38	1966	PIT	54	11	0	0	0	0	0	0	0	0	6	0	0	12	0	0	1	0	0	1	.000	.000	.000	.000	-1	-2.7	.000	-105	-2.9
7	Bill Henry B. Henry	38	1966	SFG	35	2	0	0	0	0	0	0	0	0	0	0	0	2	0	0	0	0	0	0	.000	.000	.000	.000	0	-0.5	.000	-105	-0.5
8	Johnny Klippstein J. Klippstein	38	1966	MIN	26	3	0	0	0	0	0	0	0	0	3	0	0	3	0	0	0	0	0	0	.000	.000	.000	.000	0	-0.7	.000	-115	-0.7
9	Stu Miller S. Miller	38	1966	BAL	51	19	2	2	0	0	0	3	0	0	8	0	0	21	2	0	2	0	0	0	.105	.105	.105	.211	-1	-3.3	.094	-46	-3.4
10	Chi-Chi Olivo C. Olivo	38	1966	ATL	47	9	1	1	0	0	0	1	0	0	1	0	0	9	1	0	0	0	0	0	.111	.111	.111	.222	0	-1.4	.099	-42	-1.5
11	Bob Buhl B. Buhl	37	1966	TOT	33	42	0	4	0	0	0	1	2	1	22	0	0	48	4	0	3	0	0	0	.095	.156	.095	.251	-1	-6.4	.126	-23	-6.9
12	Whitey Ford W. Ford	37	1966	NYY	22	18	0	0	0	0	0	0	1	0	6	0	0	19	0	0	0	0	0	1	.000	.053	.000	.053	-2	-3.8	.036	-85	-3.9
13	Jim Gilliam J. Gilliam	37	1966	LAD	88	235	30	51	9	0	1	16	34	0	17	2	1	273	63	10	3	1	3	5	.217	.315	.268	.583	22	-7.3	.268	76	-7.6
14	Elston Howard E. Howard	37	1966	NYY	126	410	38	105	19	2	6	35	37	1	65	0	0	451	146	27	0	3	9	12	.256	.317	.356	.673	45	-3	.295	92	-3.8
15	Joe Nuxhall J. Nuxhall	37	1966	CIN	35	40	2	4	1	0	0	2	0	0	14	0	0	41	5	1	1	0	0	1	.100	.100	.125	.225	-2	-6.3	.099	-47	-7.1
16	Steve Ridzik S. Ridzik	37	1966	PHI
17	Jack Sanford J. Sanford	37	1966	CAL	50	22	1	3	2	0	0	1	2	0	12	0	0	26	5	2	1	1	0	0	.136	.200	.227	.427	1	-2.1	.194	25	-2.1
18	Curt Simmons C. Simmons	37	1966	TOT	29	26	0	3	1	0	0	0	3	0	11	0	1	32	4	1	3	0	0	1	.115	.207	.154	.361	0	-3.1	.177	5	-3.6
19	Frank Thomas F. Thomas	37	1966	CHC	5	5	0	0	0	0	0	0	0	0	1	0	0	5	0	0	0	0	0	0	.000	.000	.000	.000	-1	-1.1	.000	-109	-1.2
20	Al Worthington A. Worthington	37	1966	MIN	65	11	2	3	3	0	0	3	0	0	6	0	0	11	6	3	0	0	0	0	.273	.273	.545	.818	2	0.4	.352	126	0.3
21	Roger Craig R. Craig	36	1966	PHI	14	4	0	0	0	0	0	0	0	0	4	0	0	4	0	0	0	0	0	0	.000	.000	.000	.000	0	-0.9	.000	-104	-1
22	Del Crandall D. Crandall	36	1966	CLE	50	108	10	25	2	0	4	8	14	0	9	0	0	122	39	6	0	0	5	3	.231	.320	.361	.681	12	-0.9	.293	90	-1.4
23	Ray Herbert R. Herbert	36	1966	PHI	23	13	0	1	0	0	0	0	1	0	7	0	0	14	1	0	0	0	0	0	.077	.143	.077	.220	-1	-2	.113	-31	-2.1
24	Vern Law V. Law	36	1966	PIT	34	66	11	16	3	0	1	3	3	0	11	0	0	73	22	4	4	0	0	2	.242	.275	.333	.609	6	-1.7	.272	71	-2.5
25	Bob Lillis B. Lillis	36	1966	HOU	68	164	14	38	6	0	0	11	7	0	4	1	1	178	44	6	5	2	0	10	.232	.260	.268	.528	10	-8.9	.237	51	-10.2