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Death and tributes. Kroc died of heart failure at an hospital in San Diego, California on 14 January, 1984 at age 81. Upon his passing, his wife Joan inherited his fortune, was estimated at $500 million. By the time of Kroc's death, McDonald's had 7,500 locations in 31 countries and was worth $8 billion.
Biography-Information. Ray Kroc was the mastermind behind the worldwide McDonald's fast food franchise. He bought the fledgling restaurant chain in 1955 and grew it into the largest, most influential fast food chain in the world.Ray Kroc was born on October 5, 1902 to Czech-Americans in Chicago, Illinois.At the age of four, Kroc's father took him to phrenologist, a person who determines fate based on the shape of someone's skull. The Phrenologist told young Ray Kroc that he would someday work in food service.e bought the fledgling restaurant chain in 1955 and grew it into the largest, most influential fast food chain in the world. Ray Kroc was born on October 5, 1902 to Czech-Americans in Chicago, Illinois.