The only Sullivans who have shown me proof of their relation to John L's family were descended from John L's father, Mike. His brother, John C., emigrated to Canada. His descendants made their way to Chicago. Some of this line moved to Philadelphia in the early 20th century. There may be others (and most likely are), but no one yet has been able to prove their relation. I am descended from John L's sister, Annie Sullivan Lennon.