Receives $10M Gift To Build New Gym And Wellness Center. The Ho-Ho-Kus Board of Education announced yesterday the receipt of a $10 million gift from Dave and Cheryl Duffield for the construction of Duffield Hall, a new gymnasium and wellness center, at the Ho-Ho-Kus Public School. The project was designed by LAN Associates and will be built by Donnelly Construction. The project is planned to be completed in the spring of 2024.