Harvey also gained a boost in business with his incorporation of the "Harvey Girl". He hired women between the ages of 18 and 30 and did not permit them to marry until they had put in a full year of work. Harvey Girls resided in housing adjacent to the restaurants, where they were supervised by the most senior Girl, who enforced curfews and chaperoned male visits. Roughly 5000 Harvey Girls moved out West to work and ultimately marry. Harvey Houses continued to be built and operated into the 1960s. Harvey was the head of the Fred Harvey Company, which operated the hotel and restaurant chain under the leadership of his sons and grandsons until 1965. It was sold in 1968 to the Hawaii-based hospitality industry conglomerate Amfac, Inc. When Fred Harvey died (of intestinal cancer), there were 47 Harvey House restaurants, 15 hotels, and 30 dining cars operating on the Santa Fe Railway. While some have reported his last words to his sons as ""Don't cut the ham too thin, boys,"" there is another account which addresses the realities of doing business: