Who is John McWilliams from My Life in France and what is their importance?

John was Julia's father. He was first married to Julia's mother, Caro, and after Caro died, to Phila. His family was of Scottish origin. John was politically conservative and he and Julia argued over many political issues. He was not fond of France, even after visiting the country to see Julia. In 1962, he was hospitalized and was finally diagnosed with lymphatic leukemia. He died on May 20, 1962.