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Contact Minnesota-based Sieben, Grose, Von Holtum & Carey to speak with one of our personal injury attorneys free of charge.
Staff Members
Gail Olson - Legal Assistant
Debra Larson - Paralegal
Four Office Locations
With offices in...
Minneapolis
Lakeville
Fairfax
Duluth
The Personal Injury Lawyers of Sieben, Grose, Von Holtum & Carey, LTD.
William O. Bongard
Winning Million-Dollar Recoveries for His Clients
A Minnesota native, William Bongard grew up traveling the world as the son of a professional foreign service worker. He has spent his entire 26-year legal career in Minnesota at the law firm of Sieben, Grose, Von Holtum & Carey representing only injured people.
William is nationally certified as a Civil Trial Advocate by the National Board of Trial Advocacy, and state certified as a Civil Trial Specialist by the Minnesota State Bar Association.
William has recovered millions of dollars in damages for people injured on the road, at work, and at home. He also shares his legal talents with the community by regularly judging Mock Trial Programs at the high school and college levels.
Specialty Certifications
- Civil Trial Specialist, Minnesota State Bar Association
- Civil Trial Advocate, National Board of Trial Advocacy
- AAA Panel of Arbitrators
- Qualified Rule 114
Professional Recognition
- AV Rating, Martindale Hubbell's highest rating for professional skills and integrity
Professional Associations
- Minnesota Bar Association
- American Bar Association
- American Association for Justice
- Minnesota Association for Justice
Education
- J.D., Cum Laude, 1981, William Mitchell College of Law, St. Paul, MN
- B.A., Cum Laude, 1977, St. Olaf College, Northfield, MN
- Admitted to practice: Minnesota, 1981 – Present
- US District Courts, 1981 – Present
Verdicts and Settlements
Jury Awards Families $24M For 2003 Train Crash
A Minnesota mother and father have been waiting nearly five years for justice for their son. He and three other young people died when a freight train hit their car in Anoka. The jury awarded the families $24 million. It's one of the largest sums in Minnesota history ...
WCCO | Star Tribune | Pioneer Press
William Bongard is a vital member of our Minneapolis based team of personal injury and wrongful death lawyers, providing extensive experience and specialized knowledge in the areas of defective products and no-fault automobile insurance litigation.



