I also grant that it seems odd that a card bearing a New Jersey dentist's name as "director" was found in a hospital quite far from New Jersey, but I notice that theccard does not include the name of that hospital so it seems that there could be a number of explanations. But to my knowledge (and to that of my cousin who worked very hard to "map" the Barry family tree) the only dentist in the US in that time period with that name was my grandfather.
I know all about him. That was my grandfather, Walter F. Barry Sr, DDS who was a well established oral surgeon in Orange New Jersey. Walter was married to Anna Walsh (d. circa 1978) and they produced Walter Jr DDS (d. 1951), Frank (my father, d. 1965), Nancy (married to John Rank, DDS of Trenton, d circa 1970), and James (d. 1975). Walter Sr. was also a professor at the Penn School of Dentistry and invented a number of new (at the time) instruments such as elevators and root scalers. I believe some can still be obtained from SS White. Walter was also the occasional dentist for the Roosevelts of Hyde Park., NY.
Walter Sr. was the son of Michael Barry (d. 1922), an Irish immigrant who landed at Ellis Island in 1859 and joined the Union Navy in 1864. (I have his Civil War Medal). I also have a copy of a letter that Michael wrote to Walter Sr. in 1906, when Walter was admitted to the Penn School of Dentistry. Walter Barry Jr., also a Penn graduate and a resident of Orange, NJ, was killed by a lightning strike in Augiust 1951 during a fishing trip on Barnegat Bay, NJ, a few months after I ws born. I found this thread because I googled my grandfather's name to try to find out where he is buried (presumably somewhere in or near Orange, NJ). If anyone wants further information, my e-mail address is sjbarry@ucdavis.edu