Doctor David Ahl graduated from West Point in 1846.who in 1854 moved to Newville,PA.During the Civil War,Dr. David Ahl was an Army Surgeon who was credited with saving an arm of a badly injured General John Grary, later a Governor of Pennsylvania,Later in,1846, Dr. John Ahl, moved to Dover, PA. for the next 20 years.He was a Commissoner of the Company that was planning the Dover and York Turnpike and Plank Road.His practice prosper and he became on of the leading citizens of the village,In 1863, more than 5,000 Confederate Cavalryman under Major General J,E.B. Stuart camped in and around Dover. Dr.John Ahl took caere of over 200 Union Prisoners' of War in front of his office than,He was quite a hero in his own write dealing with Confederste occupation of Dover etc.Trying to find out what happen to his wife? More on this later!