Complex sentence: One of the most notable is the National Cowgirl Museum and Hall of Fame in 1992.Until now, the ProRodeo Hall of Fame didn't have barrel racing, so she could only be inducted as a rodeo Notable.
Split into simpler sentences: One of the most notable is the National Cowgirl Museum and Hall of Fame in 1992. However, since the ProRodeo Hall of Fame doesn't have barrel racing, she could only be inducted as a rodeo Notable.