Looks like you're right about the 1892's since there appears to be cleaning rods under the barrel. Not seen this photo before, but the building behind the soldiers look very familiar.

When the army issued rifles back then did they issue mustaches to go with them? My other question was the age of these guys. Was the SAW fought primarily by old dudes?

Here is what I have from my list of The Official Roster of Ohio Soldiers in the War with Spain 1898-1899.  I have 8117 men that have ages posted to the book in my spread sheet at the moment.  The average is 24.1 years.  I still have three or four regiments to go.

Average Age             24.1
Total in list so far.  8117
Age   # of soldiers

15      1
16      6
17      7
18      450
19      663
20      664
21      1290
22      884
23      707
24      625
25      522
26      403
27      309
28      322
29      208
30      199
31      119
32      117
33      85
34      90
35      81
36      52
37      47
38      47
39      44
40      35
41      32
42      27
43      27
44      21
45      3
46      0
47      4
48      4
49      4
50      5
51      1
52      3
53      2
54      1
55      2
56      1
57      0
58      0
59      0
60      0
61      0
62      1
63      0
64      1
65      0
66      0
67      0
68      0
69      0

Found an error in my data.  Thank god for check sums


4th OVI      A      Preston, Coit      Musician      Columbus      15      Discharged      Discharged July 18, 1898 per order of Sec. of War, per S. O. 191, A. G. O.

Did Michigan produce a roster like the Ohio?