I can't give you any background on that Timothy, but I believe I can trace the lineage of the sons Dennis N Fellon and Daniel T Fellon.
Both moved to Lyon County Minnesota southwest of Marshall Minn and received homestead act land grants. Daniels wife died in a prairie fire and he apparently did not receive the patent for his land grant. Dennis received the patent for his land grant in 1888 (he had been living in the area since at least 1884). He and wife Jane (last name unknown) had 5 children, Timothy W, Daniel W, Joseph, Charles, and Hulda (female). He eventually passed on in North Eastern Washington at r near the home of his son Timothy. I can break this down further if you are interested.