New Principals Coming To Tassajara Hills, Diablo Vista

DANVILLE, CA — Tassajara Hills Elementary School and Diablo Vista Middle School are taking on new principals this year, according to the San Ramon Valley Unified School District.

Margrette Wui, who has served as assistant principal at Quail Run Elementary School, Venture Independent Study, and Del Amigo Continuation High School, took over as principal of Tassajara Hills on July 1. She has worked at a number of SRVUSD schools, including teaching at Montair, Quail Run, Hidden Hills, and Tassajara Hills elementary schools, and serving a Multi-Tiered Systems of Support (MTSS) Liaison at Montair and Sycamore elementary schools in 2021-22 before she was promoted to assistant principal at Venture and Del Amigo.

Wui holds an M.Ed and Preliminary Administrative Services Credential from California State University San Marcos and a California Reading and Literacy Leadership Credential and Multiple Subject Teaching Credential from St. Mary’s College.

Jeffrey Osborn, who served as assistant principal of California High School from 2019 to 2023, took over as principal of Diablo Vista Middle School on July 1. Before that, he was assistant principal at Windemere Ranch Middle School for six years. During the summer of 2019, Osborn served as summer school principal at Bollinger Canyon Elementary School. Osborn holds a BA in social studies and an MA in educational leadership.

Megan Keefer, the former principal of California High School, has also been tapped to lead Montair Elementary School.