On the 8th day of June he was commissioned and mustered as second Lieutenant of Company D, vice Lieutenant Whitmore resigned. Was engaged the 2d and 3d days of July in the battle of Gettysburg. Was in command of troops that guarded the wagon trains from Nashville, Tenn., to Bridgeport, Ala. Also marched and guarded a wagon train to Chattanooga; arriving as far as Wauhatchie halted for the night, comfortably rolling themselves in their blankets preparatory to a good night's rest. About eleven o'clock firing was heard upon the picket line, when they were ordered out and soon in line, which had hardly been done before they received a sharp volley of musketry from the rebels. The fight lasted until three o'clock of the next morning. The killed, wounded and missing of the 137th Regiment in this engagement was ninety men. Lieut. Bishop also participated in the famous fight at Lookout Mountain, and that of Ringold, Ga.
May 2d, 1864, he commenced the great Georgia campaign with Gen. Sherman; was engaged in the battle of Resacca from the 12th to the 15th of May, and on the 25th in the battle of Dallas Wood; the next engagement was at Pine Knob on the 15th of June; had continued skirmishing until the 20th of July, when occurred the battle of Peach Tree Creek, Ga., after which they rested until the 23d, when they moved in front of Atlanta; marched into the city Sept. 2d at twelve o'clock, after a campaign of over four months.
October 24th Lieut. Bishop was commissioned and mustered first Lieutenant of Company D, vice Lieut. C. C. Kellogg resigned. October 25th he was sent out with a foraging party; were out four days and returned with five hundred wagon loads of forage. November 1st started for home on a twenty days leave of absence, and eight of the days were occupied in getting there; upon his return he found the Regiment at Savannah. January 27th he was ordered to the hospital, being wholly unfit for duty; was detained there twenty days: was again with the Regiment at Raleigh, N. C., where orders were received to be ready forthwith to march for Richmond, the Confederacy having succumbed to the government of the United States. Passed through Richmond the 11th of May, crossed the Rappahannock at U. S. ford the 15th, and arrived at Alexandria on the 19th. May 23d he received an order stating that he was honorably discharged from further service by reason of physical disability; arrived at his home in Ithaca June 20th, 1865.