Hi Again Mr. Turner,Did another search on the hospital and got this link.Not much information but a little and a picture of the "staff".In the upper right, there is a "Contact Us" button.Maybe by contacting them,a unit history may be available. Hope something new will be found for you.
And I had given you this information before but thought I would repost it so that it may help others who are searching for you.Did you email Ms. Britton or use the other email address of VACArchives@viahealth.org found in the sites below?The Baker-Cederberg Museum supposedly has a "special collection" of the 19th General Hospital (World War II), 1942-45.
19th GEN HOSP – USAFBI Sep 43 - ETO – Nov 44 - France (USAFBI - United States Army Forces in the British Isles)
19th General Hospital, i.e. Rochester General Hospital, Rochester, N.Y. embarked 5 Sep 43 for England
These two links have information about the 19th. Second one seems to be the most beneficial as there is a person to contact.