My Thomas A. Desjardin map of Gettysburg shows the Oak Ridge Seminary (also known as the Oak Ridge Select Academy for young ladies) owned by Elias Sheads, but was there an adjacent house that is not shown? An 1858 rendition supposedly depicts the seminary and a separate house:
However, neither building in this depiction looks like the actual house, which still stands. Aside from this anomaly, a description given by Corporal Asa Sleeth Hardman, 3rd Indiana Cavalry, clearly suggests two adjacent structures, and that the house had two stories. Hardman was one of seven Union soldiers selected by an unidentified Confederate officer to remain on the premises to tend to the 72 severely wounded men who were taken into the house - the exact same number separately reported by Ms. Carrie Sheads, principal of the school. Hardman climbed to the roof of the house to watch the grand charge on July 3.
Incidentally, the Oak Ridge Seminary was reportedly erected by Hermann Haupt, the Union Army's railroad genius.
Several of the "young ladies" returned after the battle and helped look after the wounded, who after a short period were removed to the general hospitals. A 1999 article in the Orlando Sentinel mentions that Hardman married a Gettysburg girl, and I am curious to find out if it was one of the seminary students. Following his first wife's (he had three) death circa 1866, Hardman moved from Gettysburg to Indianapolis, and in 1882 came to Leesburg, Florida (where he is buried).
https://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GRid=5102084