Dr. Steven John Ross was born February 24th, 1951 and passed away, surrounded by his family, on April 27th, 2023 from brain cancer. He came to the University of Maryland in 2009 with a joint appointment in the Center for the Advanced Study of Language (until 2017) and the school of Languages, Literatures, and Cultures. From 2013-2020, he served as Director of Graduate Studies for Second Language Acquisition M.A. and Ph.D. programs. He earned his PhD in Second Language Acquisition from the University of Hawai'i Manoa. He was a well published scholar and widely respected teacher and mentor to many students with a particular expertise in statistical studies and language testing. Over the course of his career, he taught research methodology and language assessment courses in Japan, Australia, Mexico, and the USA, served on the editorial boards of the TESOL Quarterly, Applied Linguistics, Language Testing, Language Assessment Quarterly, and Language Learning, and was the Associate Editor of the latter from 2010-2015. Due to his illness, Professor Ross stopped teaching at UMD in the middle of the Spring semester of 2022, but his scholarly life continued. Longitudinal Studies of Second Language Learning: Quantitative Methods and Outcomes, co-edited with his former student Megan C. Masters, was published in January of 2023. Throughout his years at UMD, he split his time between College Park and Japan, which was the family home; he was a fluent speaker of Japanese. During the pandemic, he often taught, attended committee meetings, and met with students in the middle of the night, his time. He will be sorely missed.