Which Horses ran in the 1971 Grand National?

The runners in the 1971 Grand National where: SPECIFY - winner BLACK SECRET - 2nd ASTBURY - 3rd BOWGEENO - 4th

SANDY Sprite TWO SPRINGS VICHYSOISE KING VULGAN

REGIMENTAL GAY BUCANEER FINAL MOVE LIMEBURNER

COMMON ENTRANCE GAY TRIP THE LAIRD