I don’t think the guy many consider to be the greatest right handed hitter of all time can be called underrated. Aaron and Mays camps will argue that their guy is the best RHH of all time. Maybe you could knock down Hornsby a bit because, for example, .400 seasons were relatively “cheap” when Hornsby played. I didn’t look up any overall league hitting averages back then though. Now, it’s one in 1930 by Bill Terry and Ted of course in 1941. Not that long from now, Ted’s will be the only one in the last 100 years.