If I read your link correctly, it says in 1857 the Massachusetts enrolled militia was around 151,000 out of a Massachusetts population around 1,200,000.
In 1858 the MA militia numbers declined over 3,000.
Since the Federal 1792 & 1795 Militia Acts required all able-bodied white men 18 to 45 to enroll in a militia unit, you might expect the Massachusetts enrolled numbers to be higher.
southernsunshine: "...including an appendix with an address by Governor Banks here:"
I took the time to read all of Governor Banks' September 1858 address carefully.
That may be the occasion of the review of Massachusetts troops referenced previously.
In this address, Banks discussed examples of historical and more recent local domestic violence events requiring a states' militia to suppress.
He also talked about the physical and mental benefits to soldiers of military training.
However, at no point in the speech did Banks hint at anything whatever having to do with either national politics or southerners.
Not in that one he doesn't, but don't worry it's coming. I just haven't gotten that far down in my pile yet.
While you're waiting, here's one of Banks's September, 1857 speeches that does touch on national politics and Southerners. He's put out becuase money is spent on Southerners in the Army and Navy, but the Southerners want to eliminate the bounties paid to fishermen. And heaven forbid! the route to the Pacific takes a Southern route, etc., etc., etc. He also says they must combine the material and moral interests. As if the Yanks were the moral ones. LOL!
http://babel.hathitrust.org/cgi/pt?id=hvd.hx4pz1#page/n0/mode/1up