Where was John Surratt on April 14, 1865 ?

[L Verge]

Have we ever answered the question of why John Surratt mailed letters to Annie Ward that were intended for his mother?

As I stated above, I can only guess that Annie Ward was a small part of the extensive mail system of the Confederacy. John had every right to worry about the feds keeping an eye on him and his activities - including intercepting his mail addressed to his mother. Perhaps Ward was a convenient go-between.