There are several branches descending from the judge. I'm one of his Great-Grandsons.
In DeArmond families of America, page 248, there isinformation of interest to you.
Searching political histories of Missouri yields some information.
Viewing microfilms of newspapers for a few days after his death is interesting. The KC Star ran an article that you'd enjoy. I suspect other major cities would have printed something as he was prominent in his day.
After he died tragically while still a member of the US House of Represenatives a slim volume of the speeches given by his fellow members was published; it makes interesting reading if you can find it.
Most of his papers were lost either in the Butler fire or subsequently in Washington, DC (apparently) however a couple of manuscripts of speeches survive and they display a certain wit.
One of his Grandsons published a little volume called Mike's Story. This reprinted some material from DeA. Fam. of Am. as well as family stories; this is a difficult item to find.