People with the last name Willenburg in Illinois
- Alice Willenburg
- Amy Willenburg
- Arch Willenburg
- Betty Willenburg
- Brenden Willenburg
- Carolyn Willenburg
- Charity Willenburg
- Cindy Willenburg
- Cynthia Willenburg
- D Willenburg
- Daniel Willenburg
- Darrell Willenburg
- Dave Willenburg
- David Willenburg
- Francis Willenburg
- Frank Willenburg
- J Willenburg
- Keith Willenburg
- Kyle Willenburg
- Laveta Willenburg
- N Willenburg
- Nancy Willenburg
- Patricia Willenburg
- Rosemary Willenburg
- Wayne Willenburg
- Wilbur Willenburg
<1>