Hi - My father, Leo DeGraw (b. 1894) grew up in Little Falls, NJ. His parents were John Jennings DeGraw and Mary Delaphine Moneghan. There were 9 boys and one girl in John and Ellen's family. John came down from NY to run Beatty Mills in Little Falls, a carpet factory.
My grandfather John DeGraw's father was Seneca DeGraw and his mom was Rachel Lewis. Your name, sir, Seneca Lewis DeGraw, is so close to those names there has to be a connection somewhere!!! Especially since your family had experience with carpet milling. Wow!
(John Jennings DeGraw had brothers, one of whom was Ed who had a daughter who studied piano at Julliard.)