People with the last name Wilhelmson in Illinois
- Alice Wilhelmson
- B Wilhelmson
- Barkey Wilhelmson
- Bernard Wilhelmson
- Betty Wilhelmson
- Bradley Wilhelmson
- Brenda Wilhelmson
- C Wilhelmson
- Carole Wilhelmson
- Charles Wilhelmson
- Clarence Wilhelmson
- Clarencel Wilhelmson
- Eliz Wilhelmson
- Elizabeth Wilhelmson
- Heather Wilhelmson
- Jake Wilhelmson
- Jerome Wilhelmson
- Jo Wilhelmson
- Jue Wilhelmson
- Lisa Wilhelmson
- Marg Wilhelmson
- Paige Wilhelmson
- Pauline Wilhelmson
- Robert Wilhelmson
- Ruth Wilhelmson
- Sally Wilhelmson
- Thasworld Wilhelmson
- William Wilhelmson
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