Henry Seiling represented the Milwaukee AC on the winning tug-of-war team in 1904. Like all the members of that team, he was actually from Chicago. There was a team event in the 1904 Olympic athletics (track & field) competition, with the Milwaukee AC a contender for the team title. The club convinced several Chicago athletes, including Seiling, to compete for them in tug-of-war, which was considered an event in track & field in that era. William Seiling competed for the St. Louis Southwest Turnverein in the 1904 tug-of-war, but there does not appear to be any relationship.