San Antonio, Bexar County
This is the site of the first Portland Cement Plant west of Mississippi River and the second plant in the United States. The company was incorporated January 15, 1880, under the name of Alamo Roman and Portland Cement Company. Cement manufactured here was used in building the State Capitol in Austin, the material at this site was exhausted and the operations of the plant discontinued in 1907. Mrs. Charles Baumberger, Sr. became connected with this company on October 28, 1880, and was in charge of the business until its close. Erected by the city of San Antonio 1944. Gus B. Mauermann, Mayor Alfred Callaghan-Paul E. Steffler. Henry F. Hein-P.L. Anderson Commissioners.