We’re excited to invite you to the second annual Yerkes Future Foundation Fall Fundraiser, taking place on Saturday, September 12, 2026. This year’s theme, Cosmic Construction, celebrates the continued restoration, growth, and reimagining of Yerkes.
Yerkes Future Foundation Fall Fundraiser: Cosmic Construction will be held on Saturday, September 12 from 6 to 10 p.m.
While the event will be held at Yerkes Observatory, there will not be parking onsite. Attendees must park at Williams Bay School (500 West Geneva Street in Williams Bay) and board a shuttle that will run continuously between the school and observatory during the event. Only ticket holders will be admitted on the shuttle.
Come hungry, curious, and ready to party with purpose!
Guests will enjoy:
• Food by Flourgirl and Flame (voted Wisconsin’s best mobile caterer), Cannoli Boys, and Pearl Girl
• Music by The DJ Firm and a quintet made up of members of the Badger High School Bach Group
• Signature cocktails
• Exclusive access to the historic observatory
• And so much more
Whether you’re listening to music in the Great Refractor dome or sipping bubbly in the event tent, this night is all about celebration and building the next chapter of Yerkes.
Tickets are $300 per person. All proceeds support the mission of Yerkes Future Foundation. Capacity is limited — secure your spot early!
There will be a shovel raise, raffle, limited live auction, and more opportunities to support Yerkes.
Please note: This is a cashless event. Cards and mobile payments only.
Due to the nature of the event, guests must be 21 years of age or older to attend.
Cocktail attire is encouraged, and construction-inspired fashion is welcomed.
Comfortable shoes are a must—you’ll be moving between the Observatory, outdoor areas, and event tent throughout the evening.
A heartfelt thank you to this incredible team for their creativity, energy, and dedication in building this celebration of Yerkes. This event wouldn’t be possible without their hard work and enthusiasm!
• Dianna Colman, Committee Co-Chair
• Robin Culbertson, Committee Co-Chair
• Dennis Kois, Executive Director
• Meg Howes, Deputy Director of Development and External Affairs
• Jolynn Blair
• Marianne Bonifacic
• Kate Chadick (Graceful Events)
• Dana Hagenah
• Janet Nickols
• Gigi Owens
• Aimee Tanking
