Hieronymus Mueller Museum

We had a great time at this year's Annual Mueller Retiree and Volunteer Luncheon! Thank you to Mueller Water Products for co-sponsoring the event along with the Hieronymus Mueller Family Foundation!

Presentations were given by Riley Kerestes, Mueller Water Products Decatur Plant Manager, and Katherine, Museum Director. MWP held a raffle for prizes, as well.

If you are a Mueller Co. retiree and did not receive a paper invitation to the luncheon, contact the museum to join the mailing list at [email protected].

Hello, Mueller Retirees!

The annual luncheon is Thursday, May 28th, 2026. RSVP required by May 21st!

You can RSVP by leaving a voicemail at 217-423-6161 or messaging us here. Please tell us your name and number of guests attending.

Hieronymus Mueller Museum and Mueller Water Products are proudly co-sponsoring this event, and we look forward to seeing you all there!

Mueller Company 100 years ago!

These images come from a group of negatives we've recently been able to digitize. It was exciting to see some new-to-us images!

Hieronymus Mueller Museum is closed today, January 23rd, due to the weather.