I am trying to find any relatives/descendents of the old boxer from the 1880's, Pat Killen. Killen was born in Philadelphia in 1861 or 1862. He died in Chicago in 1891. He was at one time, predicted to be the next Heavyweight Champion boxer, after John L. Sullivan. I believe his middle name to be James. He had a brother named Denny, who also boxed, and both moved to Minnesota in 1885 and lived there until 1891. I have been researching Killen's life and career, and the newspapers of the day state he was married and had a son. The son was born in 1890. I think his wife's name may have been Jessie, and his son's name may have been Marcus. My guess is after his premature death at a young age in 1891, that his widow remarried and their son possibly took on the last name of his new stepfather, but this is only a guess, based on the fact that I cannot find any history on what ever became of his widow and son. His body was brought back to Philadephia and buried at Old Cathedral Cemetery. Any help would be appreciated.