Elizabeth Sheridan was daughter of David and Nancy Sheridan and the sister of John Sheridan, whom she lovingly referred to as "Johnny". He, in turn, referred to her as "Lizzie". She introduced John to her friend Anna, whom he would eventually marry. She was married to a man named Daniel, with whom she had more than one child.[2]

In 2259, she travelled to Babylon 5 to visit her brother at his new post - the two had not seen each other for several years - and give him a message left by his late wife, Anna Sheridan, that she had held onto since the funeral. She left on the transport, Von Braun.