Board of Directors


WILLIAM NORCROSS, President is an Emergency Physician in the Emergency Department at Parkland Memorial Hospital for the University of Texas Southwestern Medical School. Born in Denton, Texas, William has Bachelor and Masters degrees in Mathematics from the University of Texas at Arlington and an MD from the University of Texas Health Science Center at San Antonio. His wife Glenda Norcross is a ballet dancer/teacher and a member of the New York Baroque Dance Company. They have no children and far too many cats; He is open to a trade.

JOSEPH LO, Vice President a native of Pennsylvania, has lived in the Dallas/Fort Worth area since 2000. With his parents’ passion for classical music, Joseph developed an appreciation for music at an early age. His transition from passive listener to active performer started with piano lessons at the age of 6. In grade school, he sang in the choir and participated in school plays. A love affair with synthesizers and drums during high school eventually led to an 8-year stint with one of south Louisiana’s top cover bands. Since then, Joseph has participated in several church and community choirs and is currently a tenor at the Cathedral Guadalupe.

Although he considered a career in sound engineering, practicality led to the pursuit of an Electrical Engineering degree from Louisiana State University (Geaux Tigers!). Joseph is currently Sr. Manager of Business Intelligence and Data Warehousing at First American Corporation. He also freelances in audio and video production with his company, Three Media. Some of his projects include Dodge RAM (Texas State Fair Promotion) and the NCAA Final Four 2014.

LEONARD HAYES, Secretary and Concert Pianist, is the Head of Piano Studies in the Music Conservatory at the Booker T. Washington HSPVA (Dallas, TX) where he is a former student. Leonard’s previous faculty appointments were held at the Schenectady County Community College School of Music, Lawrence Academy of Music, and Appleton Music Academy.

Mr. Hayes is a winner of numerous national piano competitions including first prize in the 2015 National Piano Competition sponsored by the National Association of Negro Musicians. As recitalist and chamber musician, Mr. Hayes has performed across the U.S. and abroad. Mr. Hayes received a High School Diploma from the Interlochen Arts Academy. He holds a Bachelor of Music Degree from Lawrence University and a Master of Music from the Eastman School of Music. Currently, Mr. Hayes is pursuing a Master of Education, on full scholarship at the Southern Methodist University Annette Simmons School of Education and Human Development.

PATRICK J. GNAGE, Treasurer studied voice at the Eastman School of Music and holds two degrees in Voice Performance and Literature. Mr. Gnage has been featured as soloist in all of the major oratorios of J.S. Bach, as well as the oratorios and choral works of Handel, Monteverdi, Carissimi, Mozart, Vaughan Williams, and Duruflé, performing with such ensembles as The Publick Musick, Orchestra of New Spain, Rochester (New York) Bach Festival Chorus, Concert Royal and the Dallas Bach Society. Recently noted for “a deep and resonant bass voice” (Christ, Membra Jesu Nostri by Schutz) and a “rich and full” tenor (Sancho Panza, Don Quichotte auf der Hochzeitdes Camacho by Telemann), Patrick’s flexibility yields him to perform a wide variety of Early Music roles. Other favorite parts portrayed with the Dallas Bach Society include La Discorde in M.A. Charpernier’s Les Arts Florissants and Testo in Monterverdi’s Combatimento di Tancredi e Clorinda. Patrick’s first performance of the bass arias in Bach’s St. John Passion was with the Rochester Bach Festival Chorus & The Publick Musick, the live recording of which was released by Sonabilis.

ANDREW BROCK is a finance & technology executive in Dallas. He currently serves as EVP & CIO of Associa, the nation’s largest residential property management firm, and is CEO of its Digital Services division. A native of East Tennessee, Andrew grew up immersed in the music of Appalachia and began playing piano at an early age. Through both middle and high school, he attended a conservatory of music affiliated with the University of Tennessee, on a piano performance scholarship.

While he ultimately chose a career in business, Andrew’s love for music has continued to play a significant role in his life. As his career moved him around the U.S., he has served as a worship leader for churches in Tennessee, Seattle, Chicago, and Texas.

Andrew received his Bachelor of Science in Finance from the University of Tennessee and his MBA in Marketing from DePaul University. He was recently named the 2019 Dallas CIO of the Year by the Dallas Business Journal.

He enjoys fly-fishing, hiking, hunting with his hound dog, and is an avid fitness enthusiast.

A native of North Carolina, SCOT CAMERON now resides in Dallas/Fort Worth and enjoys a musical career as a classical artist, conductor, vocal clinician, and church musician.  Mr. Cameron has spent the past twenty three years performing throughout the US and abroad, includin g Israel, Latvia, Spain, France, England, China, Brazil, Taiwan, Singapore, and Ukraine.  He has performed with Concert Royale at Princeton University, Hallelujah Oratorio Society in Singapore, Dallas Bach Society, Orchestra of New Spain, Early Music Foundation of New York, Rochester Bach Festival, Houston Masterworks Chorus, Orpheus Chamber Chorale, New York Baroque Dance Company, the Orquestra Sinfonica y Coro de Radio Television Espanola en Madrid, Bach Sinfonia of Washington, and the Fort Worth Symphony.  He is featured on the Dorian recording, Madrid 1752, “Sacred Music from the Chapel of Spain” and Alexander’s Feast by the Bach Sinfonia of Washington as well as many solo recordings.  He made his Carnegie Hall debut in 2003 with the Sacramento Choral Society and the New England Philharmonic.

Scot Cameron has served as a worship leader, Christian vocalist, and church clinician.  Ministry highlights include Focus on the Family, Chuck Swindoll Ministries, Marketplace Ministries, Swann’s Place on Daystar Television, Texas Evangelism Conference, Christian Medical/Dental Society, National Religious Broadcasters Association, The Dino Show for Trinity Broadcasting Network, and countless churches across the United States.  More information can be found at

ELIZABETH GARCIA is a South Texas native who has lived in the Dallas area since 2008. She is in video-products marketing for AT&T and holds a bachelor’s degree from the University of Texas at Austin and an MBA from UTSA. Music has always been an integral part of her life, singing in various churches, schools, and community choirs. She was privileged to sing with the Corpus Christi Cathedral Pontifical Chorale at a papal audience for St. Pope John Paul II (1997), and with the San Antonio Mastersingers at both Carnegie Hall (2008) and in the Cavalleria Rusticana chorus for Andrea Bocelli (2008).

Elizabeth has previously served on the board of the Student Union at the University of Texas at Austin, Women of AT&T – San Antonio Chapter, St. Rita Fine Arts in Dallas, and currently sits on the parish council for Cathedral Guadalupe.

AREND JULIUS KOCH moved to Dallas in 1965.  His objective was to learn more about the cotton business, in which his family had been involved since 1868.  Here he became active in many business and cultural organizations.  He served on the boards of the German Day Council, the German American Chamber of Commerce in Atlanta, and was President of the German American Chamber of Commerce, North Texas Chapter.  Arend was Board member of the Wagner Society of Dallas, and for 10 years he served as President and is the Honorary President of the Dallas Goethe Center.  Since 1991 he serves on the board of the Dallas Chamber Music Society of which in 1998, he became First Vice President, and then served 3 consecutive terms as President.  He was elected  President Voices of Change, and in May 2006 was voted to the Executive Board of the Dallas Bach Society and in 2007 was elected 2 terms as its president.

Arend also is a member of the American Council on Germany in New York and is actively involved in its Texas Warburg Chapter. In 1990, the German government awarded him the Federal Republic of Germany Friendship Award.

Arend is married and has two children.

A native of the Berkshires, SONYA MERRILL, MD, PhD, often attended concerts at the Shed at Tanglewood as a young child. This early exposure to classical music prompted her to start violin lessons at age three. After moving to Dallas Sonya continued her studies with Melvin Baer of the Dallas Symphony Orchestra and later joined the Greater Dallas Youth Orchestra. She returned to her home state of Massachusetts to attend Wellesley College where she majored in philosophy and continued her musical interests. She also was fortunate to be able to play with a number of college orchestras while studying philosophy for five years in England, first as an undergraduate at the University of Cambridge and later as an MA and PhD student at the University of London.

However, her professional path ultimately led not to musical performance or to an academic career in philosophy but rather to medicine. She graduated from Harvard Medical School and completed residency training in Dallas in internal medicine followed by a fellowship in sleep medicine. She started her private practice, Dallas Sleep Medicine Specialists, in 2007. She is now in her twelfth year as the associate program director of the internal medicine residency program at Texas Health Presbyterian Hospital Dallas where she enjoys mentoring young physicians. She is an avid traveler and is particularly drawn to India and Southeast Asia.

Rev. Dr. ROBERT PREECE is Senior Pastor of Zion Lutheran Church and School of Dallas.  He was born and raised in Austin and came to Zion in 1990, having served previously for 17 years at Immanuel Lutheran Church of Waterloo, Illinois (metro St. Louis).  A 1973 graduate of Concordia Seminary, St. Louis, he earned a Doctor of Ministry degree in 1981 from Drew University, Madison, New Jersey.

Pastor and his wife Linda, she with roots in San Antonio and Austin, have two married sons, Justin and Matthew, and three grandsons. Linda is a retired fundraiser, having served Southern Methodist University for 22 years.  She had a professional soprano career in St. Louis as co-Principal of the American Kantorei under the direction of The Rev. Robert W Bergt.  Pastor Preece also sang in the American Kantorei and keeps his copy of J. S. Bach – 371 Four-Part Chorales, Edition Breitkopf, on the home piano and plays regularly for pastoral inspiration, rest, and peace.

While a journalism graduate student, ROSALIND de ROLON managed marketing public relations for the University of Missouri’s system-wide concert series featuring artists such as the Guarneri Quartet, Beaux Arts Trio, Itzhak Perlman, Vladimir Ashkenazy, Isaac Stern and London Symphony.

She then directed marketing public relations and publications at the Modern in Fort Worth, substantially growing membership and media coverage and conducting the American Museum Association’s national professional-development programs for PR practitioners.

Recruited by Canada as a diplomatic officer, Rosalind opened U.S. cultural markets, ran Canadian performing arts tours from Canada to Mexico and managed academic, cultural and media programs. She later consulted for U.S. nonprofits in the areas of marketing public relations, strategic planning and fundraising.

Author of The Feminine Face of God in Christianity and The Earth as a Sacred Realm, Rosalind has lectured widely on Primordial Wisdom, the forgotten common vision of the world’s religions.  A native Californian, she holds degrees from the University of California, Berkeley, the Sorbonne and the Graduate School of Journalism at the University of Missouri.

DONALD ROTERMUND is Minister of Music Emeritus, Zion Lutheran Church in Dallas. He holds a Bachelors from Concordia University in Chicago, and a Masters from NTSU  with additional studies at SMU, and other institutions. He also holds an Honorary Litt. D from Concordia University. He has held the position of Dean and Sub Dean of the Dallas Chapter of the American Guild of Organists, and is a past officer of Association of Lutheran Church Musicians. He has written several compositions and several books offered by five publishers, and is a past vice-president and Executive Board member of DBS.

BRUCE SAMUELSON is a retired software engineer. He also worked as a Bible translator and teacher, and has master’s degrees in physics and linguistics. Although he’s not a musician, he appreciates music as one of God’s greatest gifts to the human race. Bach wrote his music to glorify God, and he has succeeded in doing so in Bruce’s heart and  mind more than any other composer, ancient or modern. Bruce feels privileged to supportthe Dallas Bach Society’s outreach as a board member.

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