Social Explorer; U.S. Census Bureau; U.S. Censuses of Population and Housing: 1960. Census Tracts. Final Report PHC(1)-11. U.S. Government Printing Office, Washington, D.C., 1962.
The age classification is based on the age of the person in completed years as of April 1, 1960, as determined from the reply to a question on month and year of birth.