The first time I went to a Physics Education Research session at AAPT as a graduate student, I met these two lovely people and my life was never the same. This picture was taken at a conference in 2017, and captures the profound joy that her work and professional community brought to her. It has been a treasure to work alongside Lillian, and to share in her deep intellect, humanity and warmth over the years. Thank you Bruce, Melanie and Connie for sharing your mother with us all.
