Marmaduke David Hornsby, b. 27 Jul 1796 Georgia, d. aft 1859 Texas, is referenced in "The Laws of Texas, 1822-1897," compiled by Hans Peter Nielsen Gammel in 1898.
In the book, Marmaduke David Hornsby, who also went by the name of Duke Hornsby, is referred to by the name of "M. Duke Hornsby," and he served as a Commissioner for the establishment of Trinity County, Teaxs, which was formerly a portion of Houston Co., Texas.
The book, "The Laws of Texas, 1822-1897" has been digitized, and may be read at this web site:http://texinfo.library.unt.edu/lawsoftexas/
In this book, the references to M. Duke Hornsby can be found in Vol. 3:
"An Act to Organize the County of Trinity," Chapter CXXXII, pages 159-160, shown on this web page:http://texashistory.unt.edu/permalink/meta-pth-6728:601?search=Hornsby
" An Act to Create the County of Trinity," Chapter CLX, pages 201-202, shown on this web page:http://texashistory.unt.edu/permalink/meta-pth-6728:643?search=Hornsby
An interesting account of how Hans Peter Nielsen Gammel came to publish "The Laws of Texas, 1822-1897," can be found at this web site:http://www.geocities.com/BourbonStreet/Delta/7552/july_28__2001.html
Mary Lee Becker
Hornsby DNA Project
mary.becker AT sbcglobal.net