Joanna (Sister Mary Elizabeth) Clark is an elder trans woman and advocate. During the 1980s and 1990s she was an LGBTQ+ activist and speaker. She was the first person to serve as a man in the US Navy and as a woman in the US Army. Later, she made vows as Sister Mary Elizabeth, an Episcopalian Sister. Sister Mary Elizabeth was the driving force behind the AIDS Education and Global Information System (AEGiS) database. These days, Joann's focus is primarily on environmental activism. Before My Warranty Runs Out is a personal narrative that recounts Joanna's life experiences.