In the modern era, only six pitchers have thrown two no-hitters with no other pitcher achieving one in between. One, obviously, was Johnny Vander Meer in 1938; the second was Nolan Ryan, who actually did it twice on his way to seven career no-hitters. Name any of the others – the first did it in Cleveland in 1908 and 1910, the second in New York in 1951, the third in Milwaukee in 1960 and 1961, and the fourth in Cincinnati in 2012 and 2013.
Addie Joss, Allie Reynolds, Warren Spahn, Homer Bailey