Bill Haenn retired from the U.S. Army as a lieutenant colonel in 1993 and has since lived at Fort Clark, immersed in its history. He is the author of the bestselling book Fort Clark and Brackettville Land of Heroes, a photographic history for Arcadia Publishing's Images of America series. The Texas Historical Commission honored Bill in 2011 with its prestigious Award of Merit in recognition of his prodigious historical documentation, continued leadership, preservation and heritage tourism promotion of the natural and built environment of Historic Fort Clark, Brackettville, Texas.
The Fort Clark Historic District remains one of the most remarkably intact districts entered into the National Register of Historic Places. -Texas preservation architect Killis P. Almond Jr. This is both an excellent guide and a thoroughly researched history of part of the Second Federal Line just north of the Rio Grande. Nick Reynolds, Book Review Editor, Journal of America's Military Past