Crocker provided a large number of veal pies to the society, which changed the eating habits of Americans. He started to run McDonald's company from 1955, and gradually made McDonald's all over the world. By 1983, McDonald's sales have reached $8 billion.
In fact, McDonald's was originally founded by two gentlemen named McDonald's. They are brothers. My brother's name is Morris McDonald and my brother's name is Richard McDonald. They opened the world's first McDonald's in Los Angeles on 1930. However, the father of McDonald's who made McDonald's "big" was Crocker.