No need to question this Lincoln conspirator’s guilt

[Gene C]

The Lincolns made use of the Soldiers' Home in the summer throughout his term of office and this was a well known fact.

According to Ed Steer's book "Lincoln, A Pictorial History", Stanton and his family also spent summer(s) at the Soldiers Home. It's not to big a stretch to think that on occasion, they may have traveled to or from work together. A tempting target for Booth and his gang, especially if Lincoln & Stanton had no military escort. (To me it is unlikely they would not have a military escort, but we know on at least one occasion, Lincoln made part or all of the commute alone)