Official register of the United States
1913
"Persons in the civil, military, and naval service, exlusive of the Postal Service" (varies: 1917- Directory; 1925-39 containing a list of persons occupying administrative and supervisory positions in each executive and judicial department of the government including the District of Columbia; 1940-59, persons occupying administrative and supervisory positions in the legislative, executive, and judicial branches of the Federal Government, and in the District of Columbia Government) Imprint varies: 1917-1932, by the Bureau of the Census; 1933-1959, by the Civil Service Commission
