Comments, questions and feedback about the AGO website should be directed to Bill Valentine
AGO offices in New York City are currently CLOSED and will remain closed in compliance with the New York State Governor’s mandate to cease non-essential business operations due to the coronavirus pandemic. All AGO staff are working remotely and will respond to e-mail and telephone calls in a timely manner. Please do not send postal mail at this time.
The AGO National Headquarters is in New York City where a full-time staff supports and coordinates publication, administration, and development activities of the organization. Our address is:
American Guild of Organists
475 Riverside Drive, Suite 1260
New York, NY 10115
Telephone: 212-870-2310
Fax: 212-870-2163
Email: info@agohq.org
Normal office hours are 9:00 AM to 5:00 PM Eastern Time, Monday through Friday. We are closed on federal holidays.
Executive Director
James E. Thomashower, CAE
212-870-2311, ext. 4300
James E. Thomashower
Executive Assistant
Eric Birk, MM, FAGO
212-870-2311, ext. 4304
Eric Birk
Chief Development Officer
Mark A. Neidig Sr., CFRM
212-870-2311, ext. 4311
Mark Neidig
Director of Development and Communications
F. Anthony Thurman, DMA
212-870-2311, ext. 4308
F. Anthony Thurman
Director of Information Technology and Digital Communications
Bill Valentine, BA
212-870-2312
Bill Valentine
Director of Member Engagement and Chapter Development
Elizabeth George, CMM
212-870-2310, ext. 4307
Elizabeth George
Manager of Competitions and Educational Resources
Harold Calhoun, MA
212-870-2311, ext. 4318
Harold Calhoun
Manager of Membership and Chapter Relations
Leah Semiken, MS
212-870-2311, ext. 7512
Leah Semiken
Membership Assistant
Molly Davey
212-870-2310
Molly Davey
Financial Manager
Abigail Loyal
212-870-2311, ext. 4302
Accounting Assistant
Erik Eickhoff
212-870-2311, ext. 4305
Erik Eickhoff
Editor, The American Organist
Todd Sisley, MM
212-870-2311, ext. 4306
Todd Sisley
Advertising Manager
Maury Castro, MSM, CAGO
212.870.2311 ext. 4599
Maury Castro
Professional Certification Program Administrator
Paul Wolfe, MSM
212-870-2311, ext. 4303
Paul Wolfe
