German-Texan Heritage Society.German-Texan Heritage Society Newsletter, Volume 9, Number 1, Spring 1987,
periodical,
Spring 1987;
Austin, Texas.
(https://texashistory.unt.edu/ark:/67531/metapth1507400/m1/96/:
accessed July 16, 2024),
University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu;
crediting German-Texan Heritage Society.