Sam Greenhouse joined the Census Bureau as a clerk at an interesting time period for the agency. The first use of sampling in the decennial census occurred in 1940. There was a major expansion of the amount of data collected. The organization of the Census Bureau underwent radical changes, including the growth of the Population Division of which Greenhouse was a part, and the Office of Statistical Assistant was established. After the 1940 census Greenhouse was also part of a new intercensal program which became the forerunner of today's Current Population Survey, and was on hand for the transition of the physical location of the agency from Washington D.C. to Suitland, Maryland. After America's entry into World War 11, Sam Greenhouse left the Census Bureau and worked with the United Nations Relief and Rehabilitation Administration (UNRRA), designed to manage the support and eventual repatriation of refugees who would come under Allied control at the war's end. Published in 2003 by John Wiley Sons, Ltd.