Middle infielders 40 home runs.

Sorted by age played at least 75% of games at 2B or SS:

Rk	Name	Age	HR	AB	Year	Tm	Lg	G	PA	R	H	2B	3B	RBI	BB	IBB	SO	HBP	SH	SF	GDP	SB	CS	BA	OBP	SLG	OPS	Pos
1	Alex Rodriguez	22	42	686	1998	SEA	AL	161	748	123	213	35	5	124	45	0	121	10	3	4	12	46	13	.310	.360	.560	.919	*6/D
2	Alex Rodriguez	23	42	502	1999	SEA	AL	129	572	110	143	25	0	111	56	2	109	5	1	8	12	21	7	.285	.357	.586	.943	*6
3	Ernie Banks	24	44	596	1955	CHC	NL	154	646	98	176	29	9	117	45	6	72	2	0	3	16	9	3	.295	.345	.596	.941	*6
4	Alex Rodriguez	24	41	554	2000	SEA	AL	148	672	134	175	34	2	132	100	5	121	7	0	11	10	15	4	.316	.420	.606	1.026	*6
5	Alex Rodriguez	25	52	632	2001	TEX	AL	162	732	133	201	34	1	135	75	6	131	16	0	9	17	18	3	.318	.399	.622	1.021	*6/D
6	Alex Rodriguez	26	57	624	2002	TEX	AL	162	725	125	187	27	2	142	87	12	122	10	0	4	14	9	4	.300	.392	.623	1.015	*6/H
7	Rogers Hornsby	26	42	623	1922	STL	NL	154	704	141	250	46	14	152	65		50	1	15			17	12	.401	.459	.722	1.181	*4
8	Rico Petrocelli	26	40	535	1969	BOS	AL	154	643	92	159	32	2	97	98	13	68	1	3	6	12	3	5	.297	.403	.589	.992	*6/5
9	Ernie Banks	27	47	617	1958	CHC	NL	154	682	119	193	23	11	129	52	12	87	4	1	8	14	4	4	.313	.366	.614	.980	*6
10	Alex Rodriguez	27	47	607	2003	TEX	AL	161	715	124	181	30	6	118	87	10	126	15	0	6	16	17	3	.298	.396	.600	.995	*6/HD
11	Ernie Banks	28	45	589	1959	CHC	NL	155	671	97	179	25	6	143	64	20	72	7	2	9	18	2	4	.304	.374	.596	.970	*6/H
12	Ernie Banks	29	41	597	1960	CHC	NL	156	678	94	162	32	7	117	71	28	69	4	0	6	14	1	3	.271	.350	.554	.904	*6
13	Brian Dozier	29	42	615	2016	MIN	AL	155	691	104	165	35	5	99	61	6	138	8	2	5	12	18	2	.268	.340	.546	.886	*4/HD
14	Ryne Sandberg	30	40	615	1990	CHC	NL	155	675	116	188	30	3	100	50	8	84	1	0	9	8	25	7	.306	.354	.559	.913	*4/H
15	Davey Johnson	30	43	559	1973	ATL	NL	157	651	84	151	25	0	99	81	9	93	9	0	2	8	5	3	.270	.370	.546	.916	*4/H