I'm trying to find the birth and death years for T. S. Henderson. He
was the chair of the Board of Regents at the University of Texas
around 1900. I'm afraid that is all the information I can provide.

Dear mbhenry,

Thomas Stalworth Henderson was born on 12 January 1859 on his father's
farm near Washington-on-the-Brazos, Texas. He died on 17 February 1937
in Cameron, Texas.

The informarion derives from his biography, available from "The
Handbook of Texas Online". There can be no doubt that this is indeed
the person you are looking for, since the text explicitly says:
"From 1895 to 1911 he was a member of the board of regents of the
University of Texas; he served as chairman from 1900 to 1911."
http://www.tsha.utexas.edu/handbook/online/articles/view/HH/fhe17.html


Search terms used:
"s henderson" "university of texas" chairman
://www.google.de/search?q=%22s+henderson%22+%22university+of+texas%22+chairman&ie=UTF-8&hl=de&btnG=Google-Suche

Hope this answers your question!
Regards,
Scriptor

Bravo indeed. I thought this would be one of the harder ones to find. Thanks.