“Mary Surratt and Edward Spangler had helped John Wilkes Booth gain entrance to the theater box...”
I didn’t know Mrs. Surratt was that directly involved. I thought she just ran a boarding house where the conspirators met & plotted.
I do remember reading that Pres. Andrew Johnson received many appeals for clemency for Mary Surratt, but that he was adamant, saying “She kept the nest where the egg was hatched”.