My great, great uncle worked with Clarence and was one of the first employees of the US Geologic Society. He traveled all over the world. He was the first person to take a photo from a plane over Japan. He mapped all over the Northwest coast. He died here in NH at the Glencliff Sanitorium for TB. He was only 31 and only saw his wife for two days after their wedding. An incredibly interesting and tragic story. The book about Clarance's double life is called "Passing Strange" and is very good. Best - Tom