useless trivia: What Word Means: A Genus Of Alders?

Questions

Who captained the English soccer team that won the World Cup in 1966?

Who got lost in the fog in his search for the America's Cup in 1970?

What Aboriginal boxer died in an accident while training for a world title fight?

Who was the oldest man to hold a world boxing title, at 44?

Whose boxing troupe was a familiar sight at Australia's fairs for nearly 50 years?