This study of a K-12 administrator preparation program adds to the research literature on trauma-informed education by addressing a gap in the literature on K-12 administrator candidates' knowledge of the meaning of adverse childhood experiences (ACEs) and what their roles are in supporting teachers who have students with ACEs. K-12 school administrator candidates (N = 102) completed a survey designed by these researchers on this topic. The concept of ACEs is addressed as part of trauma-informed education from the K-12 administrator candidates' point of view using a concurrent mixed methods case study approach at one administrator preparation program. Implications and recommendations for school administrator preparation programs are discussed.