Curved Dash Oldsmobile Club
Curved Dash Oldsmobile traveling along a country road

Curved Dash Oldsmobile Club

Whether you're discovering the Curved Dash Oldsmobile for the first time or have owned one for decades, you'll find friendship, knowledge, and a community that shares your passion for automotive history.
Whether you're discovering the Curved Dash Oldsmobile for the first time or have owned one for decades, you'll find friendship, knowledge, and a community that shares your passion for automotive history.

Founded in 1977, the Curved Dash Oldsmobile Club is an international community dedicated to preserving, restoring, and celebrating the world's first successful American automobile.

Members Receive

Registry & Technical Information

Drawings, specifications, and helpful advice.

Quarterly Newsletter

New, how-to advice, member profiles, restoration stories.

Access to Experiences Restorers & Collectors

Via a very active news group of like-minded froends

International Community of CDO Enthusiasts

We have members and cars all around the globe.

By the Numbers

1977 Club Founded by Gary Hoonsbeen and Norm Nielsen
50 US States
39 Countries
200+ Members
771 Unique Cars
7,800+ Car Records
9,300+ Searchable Index Records

Life in the CDO Club

Member Profile
Bill and Anne Ottemann

Bill and Anne Otteman, in CDO # 7111

Engineer, restorer, and lifelong Curved Dash enthusiast, Bill Otteman has spent decades preserving automotive history. Together with his wife Anne, he has driven their 1902 Curved Dash Oldsmobile more than 13,000 miles, including the London to Brighton Run. Through his expertise in casting, pattern making, and 3D printing, Bill has helped countless collectors keep these remarkable automobiles on the road.

Recent Newsletter

recent CDO Club newsletter

Articles include RIAC Pioneer Run 2026, Adjusting the Cranl, Even More on the Beginning of the Olds Motor Works, and more!

Latest News & Club Updates

Stay up to date with the latest club news, upcoming events, new publications, member stories, and opportunities to get involved.

Jul 1, 2026
Newsletter

June Newsletter

The June newsletter is now available. It's been included in our new and improved newsletter archive. We now have over 9,300 entries indexed!

Mar 20, 2026
Volunteer

Photos Needed

Our Editor can always use more photos and articles. You don't need any special talent; just send Vince the basic info and he'll do his "Editor Magic" to create something special for all of us to enjoy. Please put "CDO" in your email subject and include your name.

Mar 3, 2022
Publications

Gary's Book

Cover of Gary Hoonsbeen's book <i>The Design History of the One-Cylinder Oldsmobile</i>

The Design History of the One-Cylinder Oldsmobile can be ordered from Nancy Hoonsbeen

Ready to become part of automotive history? Join the Curved Dash Oldsmobile Club.