An interesting article appeared in "The Galveston Daily News" of 7 May 1876, issue 39, column B wherein the article, titled "Journalists of Austin in 1840", describes: "Major Bonnell was of the 'Sentinel' and Mr. Teulon of the 'Gazette'..." and it goes on to describe Bonnell as "...extremely ill-favored, an ugliness so pronounced that it was unique. A shock of rosy hair lifted itself above his light blue eyes." Typical for the times, it doesn't give a first name. However, fast forward twenty years to 1896, and another interesting tidbit appears in the same newspaper. The title is "Early Days of Texas", a 6 article series written by Mrs. Julia Lee Sinks of Giddings, Texas. The paper states: "The letters are got up in narrative style, all from her own experience." In the article, Mrs. Sinks writes: "The nights were too pleasant to yield our enjoyment of space to fears, though our home was on the beaten track of the Indians into town from the pass of Mount Bonnell." She further writes: "But in spite of Indian alarms no fears deterred us from seeing all the enjoyment we could under the circumstances. There were two riding parties to make visits to Mounts Bonnell and Tenlon in the summer of 1840, mountains named in honor of the two journalists of the time. The profession should be proud of the compliment, having the enduring hills called by the names of two who lived and wrote at this period and passed away." ["Galveston Daily News", 9 Feb 1896, pg. 18, Issue 322, Col. A]
So, according to this lady who claims to have lived during the early days, Mount Bonnell was named after a local newspaper man. I searched WORLDCAT and found that there are surviving copies of Austin's "Sentinel" newspaper. The publishers are shown to be "Creeger & Bonnell". Again, no first names are given but I suspect that if one viewed the microfilm of the original paper, the masthead just might give the full names. Many repositories, especially in Texas, hold this microfilm. From the earlier newspaper article, we are given Mr. Bonnell as a "Major" so wouldn't that help to pin down which Bonnell was the newspaper man? Could there have been two Bonnells, both having newspaper connections and both in Austin? I doubt that.
I believe Mrs. Sinks is spot on correct so please email me privately so that I can tell you where to mail the $200. Just kidding, hope this is of some use. Rick