From The Lavender Scare by David K. Johnson (University of Chicago Press, 294 pp.):

The caption: “Lieutenant Roy Blick, head of the Washington, D.C., vice squad, oversaw the arrest of hundreds of gay men and lesbians. In March 1950 he told a congressional committee that Washington was home to five thousand homosexuals and estimated that three-quarters of them worked for the federal government. (Courtesy AP/Wide World Photos.)”