In 1843, Julia, her sister, and their father joined the President Tyler on a tour on a steam naval ship. During the tour a huge naval gun exploded, killing her father. The President Tyler comforted her. He also got her consent for a secret engagement. Marriage took place on 26th June 1844. When the news was announced, it attracted interest and publicity. Some people also criticized it as the President Tyler was 30 years older than Julia.