George Washington’s family secrets revealed by DNA from unmarked 19th-century graves

Genetic analysis has shed light on a long-standing mystery surrounding the fate of President George Washington's younger brother Samuel and his relatives. Two of Samuel's descendants and their mother were recently identified from skeletal remains found in unmarked burials dating back to the 1880s. The research also produced the first patrilineal DNA map for the first US president, who had no children of his own.

Researchers have mapped out important details about the ancestry through several types of DNA analysis, ...