Short answers, pulled from the story.
Norm Drucker was a professional basketball referee who worked in the NBA and ABA for over 35 years, spanning from 1953 to 1977. He was regarded alongside Mendy Rudolph and Earl Strom as one of the three best referees in professional basketball from 1963 through 1977. He also served as Supervisor of Officials for both the ABA and the NBA.
Drucker ejected Wilt Chamberlain on the 3rd of January, 1962. Chamberlain had played every minute of every game that season up to that point, and the ejection removed him for 8 minutes and 33 seconds. It remains the only time across 14 years of NBA play that Chamberlain was disqualified from a game by personal or technical fouls.
Drucker joined the ABA along with fellow referees Joe Gushue, Earl Strom, and John Vanak when the two-year-old league offered the first multi-year officiating contracts in professional basketball history. His combined salary and a $25,000 signing bonus amounted to more than double the average NBA player's salary at the time, making him the highest-paid referee in basketball history at that point.
Drucker officiated the deciding game of a league championship eight times: four in the NBA, in 1963, 1965, 1966, and 1968, and four in the ABA, in 1971, 1972, 1974, and 1976. His total of 38 NBA and ABA championship-round games was the second highest in professional basketball history.
As Supervisor of Officials, Drucker created the first formal professional basketball referee training program by partnering the NBA with the Continental Basketball Association, the top pro basketball minor league at the time. By 2000, nine of the 12 referees who officiated the NBA Finals were graduates of that program; by 2008-96 percent of all NBA referees had trained in NBA-affiliated minor league programs.
In 1977, at 56 years old and close to retirement, Drucker joined 23 of the NBA's 25 other referees in a pre-playoff strike. After 16 days, the NBA recognized the referees' union for the first time. Drucker shared in none of the resulting financial gains, but within three years, top NBA referee salaries and benefits increased by $100,000 per year.