It is really a pretty remarkable series of military and political actions. [I am but poorly versed on the Civil War writ large, and very poorly versed on the well-researched matters pertaining to which Union and Confederate Generals performed well and which performed not at all well. So, I am not attempting, in this 3-4 month time-snippet, to declare Halleck one of the Union's best; I am simply saying that his judgment and execution in regards to the "Troubled State" following the Frémont failures, is pretty impressive.]
Of the NYT articles, just for the benefit of anyone else who may be searching any portion of these aspects of the administration of martial law, I am going to key this one in in its entirety because it fills in the void/mistake I was making concerning the amount of the assessments stemming from G.O. 24:
"The names of about 300 rebels have been enrolled at the Provost-Marshal-General's Office, upon whom contributions are to be levied under Gen. Halleck's General Order No. 24, for the benefit of the Southwest refugees. About sixty of the most prominent of these are to be called upon to-morrow for the sums set opposite their names, varying from $100 to $400, and the balance are to be notified as the exigencies require."
Two final items:
1. With all the interest and talent that you all have in Missouri, I would hope someone could get the Sec'y of State to go the extra mile with regards to the more than 400 rolls of microfilm that compose the Provost Marshals' Papers. I would estimate that more that 60 percent of all the content in that series pertains just to Missouri. It is a Missouri treasure, but it is virtually unavailable. Owing to the lack of resources, if you take a query like the one you made and try to 'drill down' to determine whether or not the reference is worthwhile, you are at the mercy of 'some volunteers' and an estimated 2-3 week-turn around for someone to 'count the number of pages' represented by a single index item -- and you may not submit one request at a time. I am certain that the list of 300 names and assessment amounts that I would like to have is out there, but unless I can go to the NARA in Kansas City and spend a couple of days, I will likely never find it.
2. As regards the "United States Police", while I don't have the facts, I am pretty certain that that was just the way the reporter for the "St. Louis Democrat" euphemistically saw things. I believe that when Frémont declared martial law [unilaterally, as was his wont, whereas Halleck finally forced President Lincoln to affirm the Major-General's right to suspend habeas corpus] he concluded that the St. Louis Municipal Police force was full of more Secesh than Union men. So, the uniformed men knocking on the door at the J. Kennard & Son carpet-store no doubt were from Provisional Governor Gamble's militia which, I believe, just several weeks earlier had been 'turned over' to the federal government to be treated as equivalent to U.S. Volunteers.