Harley Kroc Barg is the daughter of Ray Kroc, who built McDonald’s into a worldwide fast food chain. She was a nice and giving person. Marilyn’s life was full of more than just her famous family connection. She left a lasting impression through her hard work in charity, especially by helping to start Ronald McDonald House Charities, a group that helps families with seriously sick children and gives them a place to live. Marilyn Kroc Barg is a well-known figure in the fields of kindness, service, and making the world a better place. This is because of her story. This profile of Marilyn Kroc Barg shows that she left behind more than just fame and money.