Leo M. J. Dielmann

Leo Maria Joseph Dielmann was a prominent and prolific architect in Texas. He designed over 100 churches, with several of them, along with other buildings, now listed on the U.S. National Register of Historic Places.

Dielmann was born in San Antonio, Texas to John C. Dielmann, a German immigrant, and Maria Dielmann, the daughter of immigrants. His father was a stonemason who joined a construction and supply business, Pauly and Dielmann. An active Catholic layman, he was elected the first president of the St. Josephs Society of St. Josephs R.C. Church and then served as first president of the Deutsch Roemisch Katholischer Staatsverband von Texas .

Source: Wikipedia