Alan Courtney 'Ace' Greenberg (1927-2014) was an American businessman born in Oklahoma on September 3, 1927. An excellent student and athlete, he served as halfback on his high school football team that won the state championship, worked in his father's store, and attended the University of Oklahoma on a football scholarship. A back injury led him to transfer to the University of Missouri, from which he graduated with a B.A. in business in 1949. A member of Zeta Beta Tau fraternity, Greenberg was renowned for his bridge-playing skills, earning the nickname 'Ace.' He began his career at Bear Stearns as a clerk in 1949 earning $32.50 per week and rose to become a partner in 1958, CEO from 1978 to 1993, and Chairman from 1985 to 2001. Under his leadership, Bear Stearns transformed into a major investment bank with over $4 billion in assets. He remained influential after retirement, signing on with JPMorgan Chase as vice chairman emeritus following Bear Stearns' 2008 collapse, which he attributed to groundless liquidity rumors and over-leveraging ignored by his successors. Greenberg was inducted into the Oklahoma Hall of Fame in 1995, received the Horatio Alger Award, appeared in media such as 'Frontline' and 'The Apprentice,' and was known as a successful investor.