Don, are you saying that the chip below may be from the Milwaukee AC? If so please find an example of red sticks with a black "M" for the Milwaukee AC,

Here is the website for the Milwaukee AC: http://www.macwi.org/
Here is the website for the Missouri AC: http://mac-stl.org/

Note the colors.

I also have a deck of cards from the Missouri AC. --- Red sticks with a black "M" (I'll scan a card if you wish)

The chip below is from the Missouri AC. End of story. There is no alternative attribution.