 In the 1850s, Randolph told the biographer Henry Randall that Jefferson's nephew Peter Carr had been the father of Hemings' children.He also said that his mother had told him that Jefferson had been absent for 15 months prior to the birth of one of Sally Hemings' children, so could not have been the father.In 1998, the Carrs were disproved as possible fathers of Eston Hemings, Sally's youngest son, by the results of a Y-DNA study of their male descendants; no genetic link existed between the Carr and Hemings lines for the descendants of Eston Hemings.