Country singer, Trisha Yearwood, appears on this episode as the Choir Director. She has no speaking lines but in 2 different scenes leads the choir in song, in one she has a solo.
Levi Strauss did design and sew the first blue jeans. He reinforced the sections of the jeans that were wear points.
In 1862, General Grant issued General Order 11 ordering Jews out of the military during the Civil War. President Lincoln ordered him to rescind it.
Hank, who is illiterate, was saved by Jewish people in 1867.
Sully is wearing a suit during the Christmas party. He has a modern tie.