“The Robert E. Dilworth Memorial Concert Series”

53rd Concert Season 2022-2023

We have returned to in-person concerts with appropriate COVID protocols in place. The auditorium is large enough (1,100 seats) to accommodate adequate distancing for everyone, you can sit where you like, (non-reserved seating). Wearing masks is your choice.  

Our Next Concert – Mark Herman, November 19 @ 3 p.m.

Mark Herman

Mark Herman is one of America’s busiest theatre organists, performing over 30 concerts and silent film presentations each year across the US and abroad. In 2012, he was named the American Theatre Organ Society’s Organist of the Year and is the youngest person ever to receive the prestigious honor. Previously, he was overall winner of the Society’s Young Theatre Organist Competition in 2004.

Mark has been featured on several episodes of American Public Media’s Pipedreams program, and has performed for countless conventions of the American Theatre Organ Society, American Guild of Organists, and Organ Historical Society. On the international stage, he has toured in Australia, New Zealand, Switzerland, and the United Kingdom. Additionally, his compositions, arrangements, and performances have been heard both on television and in motion pictures. In 2019, he was honored to be featured alongside the Los Angeles Philharmonic for a rare organ solo cameo.

As a film accompanist and scorer, Mark has developed a reputation for dramatic period-authentic film scores with historically informed presentations that not only resonate with but captivate modern audiences. In 2019, he was commissioned to compose and record two new scores for The Criterion Collection’s latest Harold Lloyd Blu-ray release.

He studied theatre organ with the late John Ferguson of Indianapolis, who was recognized worldwide for his skills teaching the art of the theatre organ. His classical piano studies were with Christine Freeman of Fort Wayne, Indiana. He earned a Bachelor of Fine Arts degree in Theatre Arts/Management from DePaul University in Chicago.

He currently resides in Los Angeles, where he is President of Mark Herman Music LLC, a provider of organ-related services and products. He is in demand as an organ consultant and project manager, as well as a voicing specialist and tonal consultant for Allen Organs and is proud to be an Allen Artist, showcasing new Allen Organs in the US and beyond.


For our 53rd Concert Season, more details of our concert artists will be posted as they appear. Check back with us often, we look forward to seeing you and thank you for your support!

Lobby doors open one hour prior

Easy access free parking

All seats unreserved – $20 for adults, $10 for under age 21 at the door on concert night, cash, cheque or credit card accepted. Please call 302-998-2803 if you have questions. 

To help us make all this possible, we sincerely appreciate your financial support by clicking the Donate button at the top of this page or by mail (please see details on Donate page) to P.O. Box 5094, Wilmington DE 19808. DTOS is a 501(c)(3) non-profit organization.  


To see our latest newsletter, click here


The Dickinson Theatre Organ Society enjoys a well-known reputation for presenting premier performances on an internationally acclaimed instrument. 2019 was our 50th Anniversary Year of bringing the finest theatre organists from the world over to concertize for the general public. You are cordially welcomed and we thank you for your support! 

Over the decades of our existence, DTOS has enhanced our Mighty Kimball Pipe Organ from the typical 1920’s movie theatre instrument into a complete “unit orchestra” capable of presenting the full palette of musical expression from Popular to Classical. It is presently the fifth largest theatre pipe organ in the world. Click here to learn more.

Please click on the video below to see our special promo. Enjoy! 

Magic Is The Sound

Console News

Did you know that the Dickinson Kimball has two consoles? We have the three manual console that came with the nineteen rank organ built in 1928 for Philadelphia’s Boyd Theatre and a refurbished vintage Kimball console you see presently that has been updated with state-of-the art electronic controls to play the full 66 rank configuration of the present day organ. While the Boyd console was re-built many years ago with at the time “state-of the-art” controls, it has had a recent complete refurbishment so we can present two-console two-organist concerts again. Click here to read about this project from our  dedicated volunteer organ crew. If you’re wondering why two consoles, while it was rare, in the 1920’s there were organs installed in theatres with such, not only for the “wow” factor of seeing two people play at the same time, but also for the musically extravagant performances that can result. Radio City Music Hall in New York City has such still in operation today with the largest Wurlitzer built for a theatre.

53rd Concert Season 2022-2023

September 17, 2022 1 PM Open House

October 8, 2022 7 PM – Donnie Rankin

November 19, 2022 3 PM – Mark Herman

March 18, 2023 3 PM – Clark Wilson

May 6, 2023 7 PM – Brett Valliant

Inquiries: please call 302-998-2803.

Robert E. Dilworth

DTOS Founder Robert E. “Bob” Dilworth passed away on January 19. His life and legacy lives on through The Robert E. Dilworth Memorial Concert Series. To learn more about his life, be sure to visit his memorial page