The Texas Collegiate League has added some league alumni data, from 2004 through 2010. The Marshals were known as the McKinney Marshals at the time.
Here is that link: TCL league alumni information
McKinney Marshals And Texas Marshals TCL Alumni Updates
Here is a link to an ebay auction for a 2006 McKinney Marshals pocket schedule.
Mention of Austin Creps winning the 2005 Texas Collegiate League Pitcher of the Year: click here
Recap of the 2008 TCL championship series (with links to photos) between the McKinney Marshals and the Coppell Copperheads: click here
Mention of Bryan Holaday playing on the 2007 Marshals: click here
2012 MiLB article about Mike Henneman joining the coaching staff of the West Michigan Whitecaps: click here
Stats for the Marshals from 2010 and 2012: click here