Dawn Sheridan-Reinhuber began singing in Northside ISD under the direction of choir directors Judy Stephenson (Marshall HS) and David Dyer (Taft HS, Class of '87). She studied voice during high school under the direction of Prof. Herald Stark, and received her Bachelors of Music in Vocal Performance at Rice University where she studied with voice teacher Virginia Babikian, and Vocal Coach and Choral Director, Thomas Jaber. After completing her undergrad, she moved to Frankfurt, Germany, with her husband (and pianist) Joachim Reinhuber, where she did graduate work in Vocal Performance at the Hochschule für Musik und Darstellende Kunst in Frankfurt am Main. She worked in the Städtische Musikschule Aschaffenburg for 14 years teaching voice, chamber music, and directed various ensembles. After having 3 beautiful children, (Daniel, Noah, and Emma- all SMHS graduates!) her family moved back to Texas in 2006 and she started her life as a full-time choral director. Mrs. Sheridan has been with SMCISD since 2009, where she started the choir program at Miller MS. She has been directing choirs at San Marcos HS since 2012, and is thrilled that Mrs. Brigitte Smith joined her as co-director in 2016. The SMHS Choirs have been consistent UIL Sweepstakes winners and they have repeatedly had students place in the Texas All-State Choirs. ​She is an active clinician and adjudicator around the state, and a member of the Texas Music Adjudicator's Association and the Texas Choral Director's Association, as well as currently serving as the Region 12 Vocal Chair for the Texas Music Educator's Association. ​Mrs. Sheridan is in her 28th year of teaching, and recently graduated with a Master of Music in Choral Conducting at Texas State University in December of 2017​ (Go Bobcats!)​.

Brigitte Smith  is in her nineteenth year of music education, all of which have been in the  San Marcos CISD schools where she has taught grades K-12. She is currently in her tenth year of co-directing the choirs of San Marcos High School.  Smith received her Bachelors of Music Education from Texas State University and her Masters in Choral Conducting from Michigan State University.

Under her direction, choirs of all levels have received numerous Sweepstakes awards and Division I ratings at UIL and festival competitions. Most notably, In  February 2020, the San Marcos High School Varsity Tenor-Bass Choir was selected as an Honor Choir for the Texas Music Educators Association State Convention.  On top of  her director duties, she is the SMHS chapter advisor for the Texas Future Music Educators Organization, is a founding member of the Purgatory Creek Chorale, and has served as the soprano section leader for the St. Edwards University and Texas State University  All-State preparatory camp.

Smith serves as a clinician and adjudicator throughout the state, and is an active member of the Texas Music Adjudicators Association and has sat  on the Committee for Standards of Adjudication and Performance Practices. She has had the honor of serving the Texas Music Educators Association as Middle School Vocal Coordinator, Region Choir Clinician, Region Choir Organizer, and Region Choir Section Leader. 

Outside of her day job, she is an avid camper and travel enthusiast. She lives in San Marcos, TX with her band director husband, Nathan, and is the proud mother of a twenty-three year old son, Cayden, currently a  Trombone Performance major at Texas State University , and a precious nine year old boy who is a lego enthusiast.