Voorhies, L. J. (Louis Joseph). Blueprints, circa 1910-1975 (bulk 1923-1948), approximately 105 items. Location: MAP CAGE: CASE 1, DRAWERS 3-9; MAP CAGE FLAT; OS:V. Civil engineer for the city of Baton Rouge. Blueprints, drawings, and maps of civil engineering projects in Baton Rouge, Plaquemine, Port Allen, Slidell, and other places. The blueprints include architectural drawings and engineering plans of Hill Memorial Library, Louisiana State University. Items of special interest include plans (June 1941, undated) for the Louisiana State Penitentiary at Angola and maps showing the location of African-American and white households in Baton Rouge. Collection is unprocessed but open for use. For further information, see online catalog. Mss. 2960.