Beginning in the 1920s, the Nieman and Fromm families began fur farming silver foxes in Mequon. Several companies, including Fromm Bros., Nieman & Co.; Federal Silver Fox Farms, Inc.; Ozaukee Fur Farms Co.; Herbert A. Nieman & Co.; and Cedarburg Fox Farms, Inc. all began operating in Mequon and southern Cedarburg in the 1920s. In 1928, 6600 of the 8841 pelts sold by the New York Auction Co. came from the Fromm and Nieman operations in Wisconsin for a record-breaking sum of $1,021,000. In 1929, the Nieman and Fromm operations broke their own record with auction sales of $1,331,679, making them a leader in the national fur industry. By 1937, the farms were selling 30,000 pelts per year. After World War II, changing consumer tastes caused the farms to begin breeding mink in addition to silver fox. Fur sales declined later in the 20th century, and the Mequon farms sold their last pelts in 1985.