Thank you for finding this for me. Without the grave marker, I wouldn't have known for sure that James was a doctor.

Now I have discovered Dr. Boylan was living in Eddyville, NE, employed as district surgeon for the UP Railroad. He had a number of relatives living in the Eddyville area, including the owner of the photo I mentioned. http://books.google.com/books?id=LqwhAQAAMAAJ&lpg=PA1584...

He was a druggist there also: http://books.google.com/books?id=EKTtAAAAMAAJ&lpg=PA110&...

A photo of his drug store is here: http://contentdm.unl.edu/cdm/singleitem/collection/nebraskas...

The book about doctors says he died following a operation, but this site says Typhoid fever: http://www.rootsweb.ancestry.com/~nesgs/Ancestree/vol03/v03n...