Allen Henderson, Executive Director
Deborah Guess, Director of Operations
Paul Witkowski, Marketing and Communications Manager

Amanda Motes, Membership and Program Coordinator
Margie Patterson, Bookkeeper/Executive Assistant
Tina Hooks, Administrative Assistant
Mandy Ruddock, Special Events Assistant


Mailing Address: 9957 Moorings Drive
Suite 401
Jacksonville, FL 32257
Phone: 904-992-9101

AHendersonED1.jpgAllen Henderson, Executive Director linkedin-logo-32.png

Allen Henderson holds degrees from Carson Newman College (BM), The University of Tennessee (MM) and the College-Conservatory of Music at the University of Cincinnati (DMA), where his minor was in Arts Administration and he was winner of the prestigious Corbett-Treigle Opera Competition.

Prior to his appointment as executive director in 2008, he served NATS as district and regional governor and was elected national secretary/treasurer from 2006-2008. He also served as interim executive director from 2007-2008. Henderson was a participant in the 1993 NATS Intern Program and later hosted the program in 1998. He was chair of the coordinating committee for the 2008 NATS 50th National Conference in Nashville, Tenn.

Henderson has held teaching positions at Oklahoma Baptist University, Austin Peay State University and Georgia Southern University. In these positions he has taught voice, foreign language diction, opera, choral techniques, choral literature, song literature and directed choirs. He also served as music department chair at Austin Peay and Georgia Southern.

As baritone soloist, Henderson has appeared in concert, opera, and oratorio across the country. A district winner and regional finalist in the Metropolitan Opera auditions, Henderson was winner of the 1995 National Federation of Music Clubs Artist Awards. He also was a regional finalist in the NATSAA competition.

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Association Notes, from NATS Executive Director Allen Henderson



2-000035-DGuess-9-13-2012-cropped-web.jpgDeborah Guess, Director of Operations linkedin-logo-32.png

Deborah Guess is director of operations in the NATS Executive Office, joining NATS in 1997. Before being appointed director of operations in 2006, she served as office manager for the Association and assisted the executive director. As director of operations, Guess is responsible for operations of the executive office, marketing and promotions for Association events, planning/coordinating national conferences and is managing editor of the Inter Nos newsletter.

Guess has more than 30 years experience in event and business management, as well as accounting. Before joining NATS, she held the position of public relations director at the Museum of Contemporary Art in Jacksonville, Fla. and before that served as assistant to the director of the Technology Resource Center at Santa Fe Community College in Gainesville, Fla., assisting with grant writing, promotions of events and computer training for other staff members. She also served as a teaching assistant at the University of North Florida and did several research internships at the Cummer Art Museum (in Jacksonville) and the St. Augustine Historical Society in St. Augustine, Florida.

Guess is a Magna Cum Laude graduate and holds a bachelor of arts degree from the University of North Florida in Jacksonville. She is also a lifetime member of The Honor Society of Phi Kappa Phi and Phi Theta Kappa. Guess holds an Associate of Arts degree in accounting and certification in Volunteer Management, Internal Revenue Income Tax Law, Business Management and Graphic Design. She has served on the Board of Trustees of the United Methodist Church and several local charitable organizations.

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Paul Witkowski, Marketing and CommunicatioPaul_W_DSC_0810-left_edited-82pct-_2x3_crop.jpgns Manager LinkedIn-Logo-02.png

Paul Witkowski joined the NATS staff in September 2016. He brings a extensive background in the performing arts, social services and public administration.

Prior to joining NATS, Witkowski served as director of communications for the Jacksonville Symphony. In his role, Witkowski oversaw marketing, publications, media relations, communications, social media, web content and video. He increased sponsorship and advertising revenue as program magazine editor and executed innovative media and promotional campaigns throughout 20 concert seasons.

Witkowski served as outcomes data administrator for Operation New Hope, where he told the transformative stories of ex-offenders re-entering society and earning sustainable employment. While earning his MPA from New York University, her served in the NYC Mayor’s Office of Operations as an analyst for Medicaid-funded home health care.

A native Detroiter, Witkowski earned a BFA in Music Management from Wayne State University, with performance specializations in jazz piano and choral singing. 

He also serves as a music minister for St. Pius V Catholic Church and has sung with the Jacksonville Symphony Chorus.

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Amanda_Motes_2018rev100x125.jpgAmanda Motes, Membership • Programs • Competitions linkedin-logo-32.png

Amanda Motes handles all aspects of membership, programs, and competitions for the National Association of Teachers of Singing. She joined the NATS staff in April 2013.

Before beginning her career in non-profit organizations, Motes spent several years working for resorts throughout Florida. As a member of various resort sales teams, she was responsible for handling the meeting needs of government and association clients, which spurred her interest in the non-profit sector. Motes returned to school in 2010 to obtain her bachelor’s degree in management & organizational leadership, specializing in non-profits.
Keeping in line with her education and experience, Motes most recently worked for an association management company specializing in meetings and online education.  During this position, she gained knowledge and experience in all facets of association management, and she is putting them to good use in her role at NATS.

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Patterson_Margie_WEB.pngMargie Patterson, Bookkeeper/Executive Assistant

Margie Patterson is the bookkeeper/executive assistant in the NATS Executive Office, joining NATS in July 2014. She is responsible for managing the organization’s financial records.

Patterson has more than 20 years of experience in office management, accounting and human resources. Before joining NATS, she assisted the Jacksonville Children’s Chorus with recordkeeping duties. Prior to that, she was office manager for KIRA, Inc., serving the US Navy at the Jacksonville Naval Air Station. At KIRA, Patterson was responsible for accounting, payroll, and human resources.  She worked closely with the contracting office to track and report contract modifications and funding. She has held accounting/management positions in the employee leasing industry, land development/construction and public accounting.

In addition to accounting, Patterson worked 10 years in the software industry. In two of the most recent Jacksonville-based software companies, she was a corporate software trainer for DTR International Software and head software/business trainer for DHS Worldwide. While in these positions, she was responsible for software testing and acceptance, working closely with programmers for new product designs, writing technical documentation and taking the lead to implement and train software to new and existing clients.  Patterson also enjoyed several years of organizing conferences, performing workshop presentations and assisting the sales teams in product demonstrations. 

Patterson, originally from Georgia, moved to Florida in 1979. In her spare time she enjoys spending time with her family, gardening, playing with her two adorable Boston Terriers, Annie and Bella and participating in charity bike rides.

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Hooks_Tina_Web_100px.gifTina Hooks, Administrative Assistant

Tina Hooks joined the NATS Executive Office in June 2015 as the administrative assistant. Hooks brings to NATS more than 15 years of professional administrative, organization, accounting, event planning and customer service skills.

Before joining NATS, Hooks spent the last 12 years with the Clay County School Board, beginning as a full-time classroom and school volunteer when her twin daughters started kindergarten. She then became a full-time substitute teacher for grades K-6 until she was offered a position as a classroom assistant and later promoted to the school secretary position. As secretary, she was responsible for maintaining an office with 80 teachers and staff and 650 students. In addition to running a busy office, Hooks was head of hospitality for the school and was nominated by her peers twice as Employee of the Year, one year becoming a district finalist.

Before employment with the Clay County School Board, Hooks was an assistant to the CFO for Industrial Water Services where she was responsible for accounting, payroll, insurance and human resources. She then took a brief leave of work when her family moved to Gainesville, Florida, and she chose to be a stay-at-home mom for a few years.

When not working, Hooks enjoys spending time with her husband of 20 years, Tim, their three children - Erin, Lindsey and Hayden - and the family labs, Knox and Lew. As a family, they spend time camping, playing golf and watching college football.

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Mandy Ruddock, Special Events Assistant

0-000040-MRuddock-9-13-2012-croppedWEB.jpgMandy Ruddock joined the NATS office as a part-time clerical assistant in 2002, working wherever extra help was needed during the busy season. Ruddock currently serves as the special events assistant and helps with planning/coordinating national conferences and Board meetings. She is experienced in retail management and event planning. Ruddock, a native of Florida, is married and enjoys going to NASCAR races.

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