Casper Holstein (December 7, 1876-April 5, 1944 was a prominent New York mobster involved in the Harlem numbers racket during the Harlem Renaissance. He, along with his occasional rival Stephanie St Clair, was responsible for bringing back illegal gambling to the neighborhood after an eight years absence following the conviction of Peter H. Matthews in 1915. Holstein became known as the "Bolito King."Born of mixed African and Danish descent in St. Croix, Danish West Indies, Casper Holstein moved to New York City with his mother in 1894. His father was a landed mulatto owner of a large farm who was in turn the son of a Danish officer in the Danish West Indies Colonial militia. Attending high school in Brooklyn, he enlisted in the United States Navy following his graduation. During World War I, he was able to revisit his birthplace while stationed in what had become the United States Virgin Islands. After the was, Holstein worked as janitor and doorman in Manhattan eventually becoming a messenger, and then head messenger, for a commodities brokerage on Wall Street.While working at the brokerage he began to become familiar with the stock market and began studying the system and numbers. He was eventually able to devise a lottery system based on those principles. Previously under and before Matthews the number was set by a system in which a set of digits 0 to 9 were drawn out at random and posted in a club house. This however allowed for the organizer to cut losses by fixing the outcome. It also created limitations on disseminating the winning number out to the gamblers. There were unrelated statistical numbers published by the newspapers which Holstein found could be used by an organizer instead. At various times the US Customs House receipts, New York Stock Exchange daily share volume and leading horse race parimutuel betting handle have all been used to set the daily number. This change permitted a larger number of gamblers to play the same game and with reduced fear of fixing. As the Prohibition began, Holstein's lottery system proved popular and soon Holstein became known as the "Bolita King", going on to earn an estimated $2 million from his lotteries.In 1932 Dixie Davis, the court house attorney who provided service for the runners for many of the numbers operators, decided that he could make more money if he were to take over as central organizer. In order to enforce his seizure of power, he brought in Dutch Schultz, who could see that Prohibition which had proved lucrative for him was reaching its end. Rather than accept a back seat however, he decided he wanted the central role. One by one various numbers operators were picked up by Schultz and told they would have to deal with him. Most complied but he was resisted by Madame Stephanie St. Clair and Bumpy Johnson. Holstein saw himself as having a political mission which would be undermined by violence and dropped out of active or central involvement overseeing street collection. The numbers game then continued operating with mostly Black collectors and mid level management. This was under mostly White leadership and by St. Clair and Johnson. Holstein continued on the periphery as a wholesale lay off gambler for several years but was arrested and stopped in 1937.By the end of the 1920s, Holstein had become a dominant figure among Harlem's numerous policy operators. Although both he and rival Stephanie St. Clair claimed to have invented the way that "numbers games" chose the winning number, both claims have long been in dispute.He controlled a large scale numbers-running operation, as well as nightclubs and other legitimate business. His income may have been as high as $12,000 a day at its peak, and he was generous with his wealth. According to The New York Times, he was "Harlem's favorite hero", because of his wealth, his sporting proclivities and his philanthropies among his community.