2) Hurryoff (1933 winner)
3) Coastal (1979 winner)
4) There was an error on my part here. The full sisters in question produced a Belmont winner and another Classic winner: Marching Home produced 1944 Belmont winner Bounding Home, and Little Rebel produced 1951 Preakness Stakes winner Bold. Sorry!
5) Temperence Hill (1980 winner)