Two franchises bound by a common former home. Frank Howard was easily the star of the old new Washington Senators. Howard totaled 26.6 rWAR during his time in the District of Columbia; only Ken McMullen, a third baseman imported from the Dodgers along with Howard in December 1964, joined Hondo above 20 rWAR (21.3). Meanwhile, six Twins posted at least that much during the same period: Killebrew (50.4), Oliva (42.7), Allison (30.4), Kaat (29.3), Perry (25.8), and one other player.
Who was the sixth Twin to top 20 rWAR between 1961-1971, when those old new Senators left nine-year-old RFK Stadium for a minor league ballpark in Texas with no covered seating?