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A native San Antonian, Leo Maria Joseph Dielmann was a product of the flourishing German-American community of south-central Texas. His father, John Charles Dielmann (1849-1923), was born in Hellenhahn, Germany, and immigrated to Texas in 1872. A stonemason, he became a partner in the San Antonio construction and building supplies business, Pauly and Dielmann. He later formed his own company, J. C. Dielmann Co., and was involved in numerous building projects in San Antonio and across Texas. He was active in city affairs and the German community. He was the first president of the Katholischer Staats-verband von Texas (the Catholic State League of Texas) and was a participant in many other church and civic groups.

Correspondence, financial documents, business records, organization records, printed material, books, architectural drawings, maps, and photographs make up the Leo M.J. Dielmann Papers, documenting the business, civic, and personal life of the San Antonio architect and members of his family.


Leo M. J. Dielmann, German Americans, San Antonio Public Library, Order of the Sons of Hermann, architects, architecture

Publication Date


Dielmann (Leo M. J.) Papers, Drawings, and Photographs, 1847-1961



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