Charles Carroll Gray (1838 to 1884) was an assistant surgeon with the 2nd US Cavalry at Bull Run. Documentation of The Southern Historical Collection, The Wilson Library, University of North Carolina at Chapel Hill notes that the diary from which this passage is taken covers the period from July 16, 1861 to July 28, 1862. Biographical information from the same source notes that:
Gray was born on March 28, 1838, that he probably lived in New York State, that he studied medcine in Geneva, New Yok (probably at Hobart College) and at Bellevue Hospital in New Yok City. He took the army medical examination in May 1861, and was appointed first lieutenant and assistant surgeon. He was captured at First Manassas and imprisoned in the South for over a year, returning to duty upon his release, and remaining in the army until his retirement in 1879. He was promoted by brevet in 1865, and in 1866 was promoted to the regular grade of captian and in the same year to major and surgeon. He died November 22, 1884.
The diary consists of two sections of small notebooks, the first without a cover and inserted inside the cove rof the second. The second is a small leather bound notebook which Gray managed to buy while a prisoner in Charleston. When the space in the second section gave out, he reversed the book and wrote between the lines..
Note that Asst. Surgeon Charles Gray of the 2nd US Cavalry is not Asst. Surgeon Charles Gray of the 11th NY, mentioned in Gray 2nd US Cav’s diary and also, coincidentally, captured at Bull Run.