Mark Siewert, principal of Earl LeGette Elementary School in Fair Oaks, will be the new principal at Andrew Carnegie Middle School in the San Juan Unified School District, the district announced.
The district also named Brent Givens, an alumnus of Del Campo High, as the next principal of John Barrett Middle School, replacing retiring Principal Lisa Herstrom Smith.
Both the Siewert and Givens appointments take effective Aug. 5.
Siewert started with the San Juan district in 1988 as a teacher for former Starr King Elementary (now Starr King K-8), where he taught special education, media, electives and physical education. He also served as an intervention specialist before he was named the middle school vice principal 18 years later.
In 2008, Siewert became an interim principal at Oakview Community Elementary and, a year later, was appointed principal for LeGette Elementary.
Siewert was an active member of the district's strategic planning, was a coordinator for GATE and school standardized testing and an intervention math coach. He also was active in leading professional development opportunities for staff.


Loretta Kalb started her reporting career at The Sacramento Union, moved to KOVR-13 as a television reporter, editor and producer, headed to The Associated Press in San Francisco and eventually returned to Sacramento and joined The Sacramento Bee. Throughout her career, she has covered the state Legislature, courts, local government and, now, education. She is a Chico native and an Elk Grove resident.
Diana Lambert began her journalism career as a proofreader at the Lodi News-Sentinel. She is now a senior writer at The Sacramento Bee covering K-12 education and California State University, Sacramento. Previously she was The Bee’s Elk Grove bureau chief. Lambert was raised in a military family and lived at bases around the globe. She attended four high schools, graduating from Tokay High in Lodi and then Sacramento State University. She lives in Elk Grove.