Missouri Enrolled Militia were state troops and therfore not typically eligible for federal pensions. thus the lack of info in the NPS S&S system which basically lists only federalized units. For more on the cornucopia of Missouri units see our own Kirby Ross's pages on Civil War St. Louis at http://www.civilwarstlouis.com/militia/federalmilitia.htm
This thread on this board has extensive info on Cochran's company.
http://history-sites.com/cgi-bin/bbs53x/mocwmb/webbbs_config.pl?noframes;read=10971
enjoy
John R.