Foundation Board

President – Dr. William Au

Bill has been a charter member of STJSF since its inception, and was introduced to traditional jazz by his brother-in- law Howard Miyata, trombonist for the High Sierra Jazz Band. Bill’s three sons attended STJS Jazz Camp and are now professional musicians and music teachers. Bill played trombone from 6 th grade, and was a member of the Cal Marching Band representing the US at the 1970 Osaka World’s Fair, and a founding member of the UC Berkeley Jazz Ensemble. He continues to play trombone whenever he has the time and enjoys jamming at the STJS Sunday meetings and at home with his sons. Bill is passionate about supporting youth music education, particularly traditional jazz, and jazz in general. He has served as President of STJSF in the past, and is currently serving again as President of SacJEF.

Bill is a retired neurologist with special expertise in Alzheimer Disease and Multiple Sclerosis. He has served as Chief of Staff at Sutter Medical Center, Chairman of the Board for Sutter Health Sac-Sierra Region, and most recently, finished his term as Board Chair of Sutter Medical Group.

Vice President – Nancy Parker

Nancy is an attorney, with most of her 24 years of practice for the State of California. A native Californian, Nancy attended University of California, Berkeley for her undergraduate degree and law school at University of the Pacific, McGeorge School of Law. Nancy and her husband John are long-time music and jazz fans, attending many adult and youth jazz concerts and festivals across the country. Their daughter Claire performed in the jazz and concert bands at Rio Americano High and Arden Middle Schools, was a long-time member of TNT (check her out on the TNT CD!), performed with the River City Swingers, and has attended Teagarden jazz camp for many summers. Claire now studies trombone performance at UCLA, Herb Alpert School of Music. Nancy has also been a long-time volunteer in Sacramento, from being a Girl Scout leader, TNT band manager, and served 2 years as president of Rio Americano Band Boosters. Nancy looks forward to bringing her experience and enthusiasm to the foundation’s mission of youth education and performance of early jazz.

Secretary – Mark Curry

Mark Curry recently retired after serving as the Director of Strategic Initiatives at The Permanente Medical Group in Santa Rosa. Previous work roles included five years as the Senior Process Improvement Consultant at Sutter Medical Center in Sacramento and 25 years with Merck Human Health.  Prior to joining Merck, he was a research assistant at the University of Oregon’s Institute of Neuroscience.  Mark has been playing clarinet since the age of 9 and at 14 joined The Jazz Minors. He has continued to play professionally on clarinet and saxophones with various trad jazz bands and other musical groups throughout his “day-gig” career. He has lived the experience of being exposed to traditional jazz at an early age and understands why it is so important to give similar opportunities to others, especially to youth.   His experience with coaching leadership teams and others regarding principle-based leadership, strategy development & deployment, and continuous improvement thinking & methods is of great benefit to the SacJEF board and programs.

Treasurer – James Treadwell

A longtime jazz fan, frequent festival attendee, and native Californian, James came to Sacramento from the Bay Area in 1986 to attend CSU Sacramento and never left. His degrees in Business and in Communications helped launch a career in insurance. James comes to the Foundation now as regional marketing manager for the largest workers compensation provider in California. His more than 28 years of insurance experience in claims, marketing, underwriting, and employment rules and guidelines help the foundation negotiate a smooth way through sometimes complicated state and federal requirements. Separate from his day job, James with his wife Erin are proud of their two musical children who have both received music lesson awards, attended the Teagarden Jazz Camp, performed in TNT, and were in band programs that benefited from the Trad Jazz Project. James is grateful for the opportunity to use his professional experience and love of music to benefit the foundation and help support and encourage the education of future generations in the performance of early jazz.

 Executive Director – Patti Jones

Patti Jones has been involved with the STJS since the early 1970s, and over time served as STJS Board Member, editor of the STJS Newsletter, Jazz Festival volunteer, and Education Committee Chair. Having left the STJS Board,  she was asked in 2009 to join the STJS Foundation Board, and soon took over the secretarial duties. By 2015 it was obvious that the Foundation needed a part-time Executive Director, and Jones, recently retired from the Sac Metro Chamber of Commerce, seemed the obvious choice. She still puts in a lot of volunteer time chairing the Education Committee, fundraising, and working hard to expand the Foundation’s programs.


Jack Cornelius, Jr.

Jack Cornelius JrJack is the principal of Jack Cornelius & Co. and began his distinguished career in public accounting in 1963. In 1977, he was the founder and managing partner of Cornelius & Company, where he began specializing in litigation support.  He became a stockholder and officer of Sacramento’s largest public accounting firm, Pfanner & Company Accountancy Corporation, again specializing in litigation support.  Jack later formed Jack Cornelius & Co., where he continues to provide litigation services to clients throughout Northern California. A member of the American Institute of CPAs, and the California Society of CPAs, Jack has actively served on the Board of Directors and numerous committees of the California Society, including Professional Conduct, Careers in the Accounting Profession, and Chapter Services Enhancement.  He is past president of the Sacramento chapter of the California Society, chaired the Ethics Committee and Careers in Accounting, and served on several committees, including Litigation Support, Practice Management and Taxation.

Mike Duffek

A lifelong resident of Sacramento county, Mike attended area schools and began playing trumpet at age 11. In 1973 he joined the Sacramento Youth Band, and performed in the Junior Marching Band, Senior Marching Band and Jazz Band.  He was also drum major for the Senior Marching Band for 5 years.  A graduate of Kennedy High School, Mike performed in the Concert  Band at Cosumnes River College, then moved on to CSU Sacramento and a degree in Communication Studies. For nearly two decades he has been employed by the California Prison Industry Authority. Mike currently serves as President of the Sacramento Youth Band Parent’s Assn. and has been involved with the Sacramento Youth Band for over 44 years.


Jill Harper

As a founding member of STJS in 1968, Jill has been involved in all its programs from the Jubilee and Jazz Sunday to all the youth education programs, especially jazz camp. She’s served on the board in several capacities including President and as the society’s Executive Director and the Director of Jazz Camp in its early years. Jill’s been on the Board of the Foundation for many years and and currently serves as Vice-president. She’s committed to helping continue the Foundation’s mission of educating young musicians in the style of traditional jazz. In her “other life,” she’s retired from a career of administration in the field of early childhood education.

Ron Jones

A native of Delaware, Ron began playing drums at age 11 and by age 14 was playing professionally with local bands. At 21 he enlisted in the US Air Force, and in 1972 was sent to Anchorage, AK with the Alaskan Air Command Band. He continued to play in Air Force show bands for nearly nine years, and on several occasions was named Top Instrumental Soloist in the USAF’s annual Tops in Blue talent show. Ron retired from the Air Force in 1988, and continued to play in all kinds of bands, from country to Big Band to jazz combos, often backing up top name entertainers. Since his
move to Sacramento, CA in the early 1980s, his drums have been heard in many top West Coast jazz bands. A familiar face on the jazz festival circuit, Ron is known for his smile and obvious enjoyment in playing, which reflect his belief that music brings people together.

Max Kiesner

Maxwell Kiesner is the Assistant Professor of Instrumental Music at Cosumnes River College, where he directs the CRC Concert Band, Orchestra, and Jazz Band, teaches Applied Trumpet, and leads courses in Jazz History and Musicianship. Mr. Kiesner holds a B.M. in Music Education from Northern Illinois University with an emphasis in jazz studies and a M.M. in Orchestral Conducting from Sacramento State University. 

From 2007–2019, Mr. Kiesner co-directed the renowned Rio Americano High School band program, where he led concert bands, jazz bands, and piano courses. During his tenure, Rio Band students received numerous DownBeat awards, were selected to play in CMEA All-State ensembles, and participated in several prestigious national competitions. During the summers, he led performance tours in Japan, Australia, Ireland, Spain, Italy, and Argentina. 

Mr. Kiesner is dedicated to supporting school music programs and educating the next generation of music professionals at Cosumnes River College. He is an active freelance musician throughout the Sacramento area, maintains a private studio of trumpet students, and stays connected to the community through his work with the Sacramento Jazz Education Foundation and the Camp Winthers Summer Music Camp.

Greg Sabin

Greg Sabin

Greg Sabin has been part of the traditional jazz scene in Sacramento as a musician, volunteer, and advocate for almost three decades. In his professional life, he is a Certified Financial Planner. Specializing in retirement planning, he’s helped thousands of people prepare for and live in retirement. He’s also worked as a freelance writer, publishing national pieces on food, wine, and health. Since 2010, Greg has worked at the Teagarden Jazz Camp as a counselor and trombone instructor. He’s excited to bring his financial acumen and love of traditional jazz to bear on the mission of the SacJEF.



Crystal Sheffield

Crystal Sheffield holds a BS degree in Psychology and a MA in Human Services Counseling from Liberty University, and is a social worker with the Eastern District Federal Defender’s Office in Sacramento. In her work at FDO, Crystal has helped develop a social work program to provide resources and supportive services to clients, while also providing an educational opportunity for social work students. She has collaborated with numerous community agencies and court departments in helping solve challenges that justice-involved individuals face as they reenter their communities. Crystal also works as a private consultant, assisting individuals and organizations with social work support in various capacities. In 2023, Crystal partnered with the Sacramento Public Library to build a social work program within their branches that serves the unhoused community and patrons who frequent the libraries and need resources. Crystal believes strongly in the power of music education to help direct and enrich a child’s life.

Erin Treadwell

Erin comes to the foundation board as a jazz fan and a parent of musicians who have wholly benefited from all of the Foundation programs. A Sacramento native, she attended many of the STJS Music events and festivals growing up. Erin works for the City of Sacramento and manages public information and outreach for the Recycling and Solid Waste Division. She is applying her twenty plus years as a PR professional to SacJEF marketing and outreach efforts. She and her husband James are most proud of their two musical children who have both received music lesson awards, attended the Teagarden Jazz Camp, performed in TNT and were in band programs that benefited from the Trad Jazz Project. Their son Eric is a trumpet player studying at the Berklee College of Music in Boston, and daughter Catherine is at Rio Americano High School and plays clarinet and saxophone in the jazz bands.

Felicia Weatherly

As a young student, Felicia participated in virtually every program that STJS offered, including years at the summer STJS Jazz Camp, and performing at the Sacramento Music Festival. Inspired to pursue a career in music education, she became a music educator and now teaches at River City High School in West Sacramento, where she created a traditional jazz band (Syncopating Sea-Monkeys) program. She has been responsible for many young musicians pursuing an interest in Traditional Jazz, even to the point of becoming professional performers of the music.