Search Results       Your search for [author]Truesdell, Leon Edgar, 1880- returned 1 record.           The development of punch card tabulation in the Bureau of the Census, 1890-1940, with outlines of actual tabulation programs/ Leon Edgar Truesdell. by Truesdell, Leon Edgar, 1880-; Washington: U.S. Dept. of Commerce, 1965. Subject: Punched card systems; United States -- Census; United States. -- Bureau of the Census.          Add to Book Cart Relevance: 29.55%