In case you're living in Texas and thinking about how to go about getting one of these markers.
The applicant researches, writes the history, gathers maps and photos with 5 to 50 pages of documentation. This will be submitted to a county historical commission for review and approval. from there it goes to the Texas Historical Commission for review.
If they approve it, the applicant pays $1000 for the marker and the commission boils it down to a short inscription.
All 254 Texas counties (I didn't know they had that many, big state I reckon) have markers.
Travis County has the most with 470. Little Loving County has a dozen, or roughly one for every 69 residents.
Wonder What the Procedure Is Here in Illinois? --RoadDog