* His mother, Rose Fitzgerald Kennedy: Rose Kennedy was a devout Catholic who raised her children to be faithful and compassionate. She was also a strong advocate for social justice and women's rights.
* His brothers, Robert and Ted Kennedy: Robert and Ted Kennedy were both successful politicians in their own right. They served as United States Senators from New York and Massachusetts, respectively. John Kennedy looked up to his brothers and often sought their advice and counsel.
* Franklin D. Roosevelt: Franklin D. Roosevelt was the 32nd President of the United States. He served from 1933 to 1945 and is considered one of the most influential presidents in American history. Kennedy was inspired by Roosevelt's New Deal policies and his vision of a more just and equitable society.
* Winston Churchill: Winston Churchill was the Prime Minister of the United Kingdom during World War II. He was a close ally of the United States and a personal friend of John Kennedy. Kennedy admired Churchill's courage, leadership, and eloquence.
* Adlai Stevenson: Adlai Stevenson was the Democratic candidate for president in 1952 and 1956. He was a brilliant orator and a leading figure in the Democratic Party. Kennedy respected Stevenson's intelligence and integrity, and he often sought his advice on political matters.