 Dielmann's work included more than 100 church buildings from Houston to Marshall to Amarillo, but mostly across South Texas, as well as hundreds of commercial buildings, hotels, schools, and houses.His 12-story Frost Bank Building erected in 1922 was restored in 1994 to become the Municipal Plaza Building, housing the City Council chambers and city offices.Dielmann married Ella Marie Wagner, a daughter of German emigres, on April 25, 1911, and they had three children.