Those claims are a bit asinine. The 727 one hand deadlift isn't too hard to get your mind around IF it involved lifting straps and a belt (nobody had those back then so...) but shouldering a 400 pound wooden barrel with one arm? How do you even start a lift like that? Cover the barrel with epoxy, strap the damn thing to your neck with a pulley and neck lift it to your gut and continental it up through only cervical spine lever and glue friction until you can roll it to your shoulder through some kind of miracle of geometry and physics until it reachs your shoulder and hope to god you have the stability to hold it on your shoulder for enough time to justify the lift?
The Union Association survived for only one season (1884), as did the Players' League (1890), an attempt to return to the National Association structure of a league controlled by the players themselves. Both leagues are considered major leagues by many baseball researchers because of the perceived high caliber of play and the number of star players featured. However, some researchers have disputed the major league status of the Union Association, pointing out that franchises came and went and contending that the St. Louis club, which was deliberately "stacked" by the league's president (who owned that club), was the only club that was anywhere close to major league caliber.