I did locate a two page copy of the "History, Harrison and Mercer Counties, Missouri, From the Earliest Time to the Present; together with Sundry Personal, Business and Professional Sketches and Family Records, Besides a Condensed History of the State of Missouri, etc. Illustrated." The book was published by teh Goodspeed Publishing Company in 1888 in St. Louis and Chicago.

On pages 454 and 455 it states:

"The Fifth Kansas Cavalry comprised two companies from Mercer County. Company B was organized near Ravanna, Mo., in July 1861, with John R. Clark as captain, Jacob Loutzenhizer, first lieutenant, and E.J. Abrams, orderly sergeant. It was composed of men from several Home Guard companies, and was organized for the Eighteenth Missouri Infantry, but Col. Johnson, from Leavenworth, Kas., who was organizing a cavalry regiment, induced this company to enter his regiment."

The two pages give more detail, which if you are interested, I will copy and send to you, or can enter here later.

I will keep looking as I recall seeing another reference to this activity.

Thanks,
Howard Mann