Admission Increase Beginning November 1st

The Hieronymus Mueller Museum will be raising the adult admission rate from $2/adult to $3/adult beginning November 1, 2024.

Fire Hydrant Display

See Inside a Fire Hydrant with Temporary Exhibit

now through February 2025

Current Exhibit

An American Dream Story

Part of Decatur’s local industrial history since 1857!

We Have a Story to Tell

Women in Mueller Co.’s History

From Mueller Co.’s beginnings, women have played important roles, both traditional and unusual.

Visiting Hours

Open Tuesday – Saturday, 1 – 4 with Tours by Appointment.

Admission

$3.00 – adults
$1.00 – under the age of 17

Other visiting times may be scheduled by appointment by calling 217-423-6161.
Special groups are welcome.

Hieronymus Mueller Museum

Decatur, Illinois

Just west of downtown Decatur, Illinois, the Hieronymus Mueller Museum is open to the public on Tuesday through Saturday and other times by appointment.

The Mueller Museum is dedicated to the collection, preservation, and interpretation of the history of Mueller Company and of the family and descendants of Hieronymus Mueller.

The Hieronymus Mueller Museum was founded in 1995 by the Hieronymus Mueller Family Foundation to house and curate the vast collection of Mueller Family and Mueller Co. physical artifacts, memorabilia and library materials.

Hieronymus Mueller
& Family

Hieronymus Mueller pictured with wife, Fredericka, and all seven children – Henry, Philip, Fred, Robert, Adolph, Leda, and Oscar.

We Have a Story To Tell

Women in Mueller Co.’s History

From Mueller Co.’s beginnings, women have played important roles, both traditional and unusual. Hieronymus Mueller’s wife, Fredericka, was certainly the “woman behind the man” accompanying both Hieronymus and sons on business trips to trade shows as well as seeing to the needs of the Mueller employees and their families.

Did You Know?

The Mueller Company Gave Out Free Rocking Chairs?

In the 1920’s the Mueller Company started giving gifts to Mueller employees upon their marriage. Each new bride was given a rocking chair and belonged to the Rocking Chair Club.