冷泉港
A follow-up study was published by Arthur H. Estabrook of the Eugenics Record Office at Cold Spring Harbor, New York in 1916 as "The Jukes in 1915". Estabrook noted that Dugdale's conclusions were that the 1877 study "does not demonstrate the inheritance of criminality, pauperism, or harlotry, but it does show that heredity with certain environmental conditions determines criminality, harlotry, and pauperism". Estabrook reanalyzed Dugdale's data and updated it to include 2,820 persons, adding 2,111 Jukes to the 709 studied by Dugdale. He claimed that the living Jukes were costing the public at least $2,000,000.