The only listed execution is: Herbert Hans Haupt German-born naturalized U.S. citizen, in 1942 was convicted of treason and executed for giving aid and comfort to the enemy (his son) and for espionage. There were several other covictions, but this is the only listed execution.
"The ignorance of one voter in a democracy impairs the security of all."
John F. Kennedy
"The strongest reason for the people to retain the right to keep and bear arms
is, as a last resort, to protect themselves against tyranny in government."