[1] Harris began teaching when he was 15 years old; however, he soon left to serve in the American Civil War as a member of Company F of the 2nd Pennsylvania Infantry Regiment.

Railroad in West Virginia, which had been partly destroyed by the Confederates at the time of Lee’s invasion of the North, and was an important artery of traffic.

When his term of service ended, he returned to teaching, but because of an urgent appeal for more troops by President Lincoln in August 1864, he returned to the service and became a sergeant in Company H, 206th Pennsylvania Infantry Regiment, which was sent to Richmond, Virginia to hold the Confederates, while Grant worked along the left flank and cut off the city.

[3] In 1889, Harris was inaugurated as president of Bucknell University, a post he held for thirty years, the longest tenure in the school's history.

[5] Harris Hall, a dormitory on Bucknell's campus, was named in his honor two years after his death.