I’m about a week late with this article from a Seneca County, New York newspaper in September 1863:
We are pained to learn of the death of PETER W. BOCKOVEN, son of GEO. W. BOCKOVEN of this town, which occurred at Washington on Wednesday of last week. Young Bockoven was a member of the 8th N.Y. cavalry, and was very much respected by all who knew him. He served faithfully with his regiment during a number of severe engagements. His disease was typhoid fever.
Gettysburg was on of the “severe engagements” in which the 8th New York Cavalry Regiment participated. The 8th fought against the Confederate advance on the morning of July 1, 1863.
You can read about the Lincoln General Hospital at the U.S. National Library of Medicine. They have a colorized Birds Eye View of the hospital. The morgue was called the “Dead House”.