People with the last name Willwerth in Illinois
- Adam Willwerth
- Barbara Willwerth
- Charles Willwerth
- Deborah Willwerth
- Eleanor Willwerth
- Harry Willwerth
- Jason Willwerth
- Jeanne Willwerth
- Jennifer Willwerth
- Joe Willwerth
- John Willwerth
- Joseph Willwerth
- Josephine Willwerth
- Lincoln Willwerth
- Lisa Willwerth
- Marcha Willwerth
- Mark Willwerth
- Mary Willwerth
- Merla Willwerth
- Mitchell Willwerth
- Nikki Willwerth
- Nikole Willwerth
- Nykole Willwerth
- Robert Willwerth
- Thomas Willwerth
<1>