Adolf Hitler's nephew William Patrick Hitler fought against the Axis during World War II as a US seaman. After the war, he disappeared to Long Island, New York with his wife.
I was to discover that the Hitler bloodline was carried on through William Patrick's four sons - one of whom died in a road accident in 1989 - and that the brothers had decided in a remarkable pact not to have children themselves in order that Adolf Hitler's genes would die with them.
Fascinating stuff. Read more here.