The Wolf Antique Gas Engine Collection

By Don Voelker
Published on June 16, 2009
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A very rare vertical air-cooled Erie engine, one of just two known to exist, in Kenny and Wendy Wolf's gas engine collection. Every part of the engine is original; parts were copied from this one to rebuild the only other Erie known of.
A very rare vertical air-cooled Erie engine, one of just two known to exist, in Kenny and Wendy Wolf's gas engine collection. Every part of the engine is original; parts were copied from this one to rebuild the only other Erie known of.
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Kenny and Wendy Wolf with their daughter, Pamela Scott (left).
Kenny and Wendy Wolf with their daughter, Pamela Scott (left).
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A rare Star 2-1/2 hp engine made by J.&E. Homan Co., New York, N.Y.
A rare Star 2-1/2 hp engine made by J.&E. Homan Co., New York, N.Y.
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Kenny with a fully operational 3/4-scale model of the 1867 Otto-Langen hydrogen atmosphere engine. The model was built by Wayne Grenning, Lockport, N.Y.
Kenny with a fully operational 3/4-scale model of the 1867 Otto-Langen hydrogen atmosphere engine. The model was built by Wayne Grenning, Lockport, N.Y.
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An early 1900s salesman’s sample Callahan engine with Goodson igniter, presumably one of a kind. The Wolfs paid more than they wanted to for the piece, but, as Kenny notes, “if you think you gave too much for a good piece today, just wait until tomorrow.”
An early 1900s salesman’s sample Callahan engine with Goodson igniter, presumably one of a kind. The Wolfs paid more than they wanted to for the piece, but, as Kenny notes, “if you think you gave too much for a good piece today, just wait until tomorrow.”
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A 4 hp Lennox tank-cooled engine made in Marshalltown, Iowa.
A 4 hp Lennox tank-cooled engine made in Marshalltown, Iowa.
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A 1904 3-4 hp Gemmer horizontal engine made in Marion, Ind., thought to be the only one of its kind.
A 1904 3-4 hp Gemmer horizontal engine made in Marion, Ind., thought to be the only one of its kind.
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A homemade tractor powered by a tank-cooled 6 hp Dorchester engine.
A homemade tractor powered by a tank-cooled 6 hp Dorchester engine.
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Kenny and Wendy Wolf’s collection includes “bells and whistles.” In addition to all manner of engines, the couple collects antique steam whistles (shown top row) and all kinds of bells, including sleigh bells.
Kenny and Wendy Wolf’s collection includes “bells and whistles.” In addition to all manner of engines, the couple collects antique steam whistles (shown top row) and all kinds of bells, including sleigh bells.
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A 5 hp Abenaque pan-cooled engine.
A 5 hp Abenaque pan-cooled engine.
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A 6 hp Charter engine, the smallest single flywheel Charter Kenny’s seen. The engine was built in about 1900 in Sterling, Ill.
A 6 hp Charter engine, the smallest single flywheel Charter Kenny’s seen. The engine was built in about 1900 in Sterling, Ill.

It’s a quandary faced by every collector: What to keep, and what to sell?

Career antique gas engine collectors Kenny and Wendy Wolf have adopted a practical approach that helps them build their collection. “If we had six engines in the garage and found one we liked better than one of those,” Wendy muses, “we might sell or trade one to make room for something new. I think that’s a good way to do things. That way, we get to own an engine, but if we get tired of it, then it goes to another collector who’ll appreciate it and enjoy it.”

The sheer tonnage of old iron that’s passed through their hands over the years could break a back several times over. “I’ve had some of these engines for 35 to 40 years,” Kenny says. “The old story that ‘Wolf will sell anything’ isn’t always true. This is an odd thing to say, but you never want to look back: Always look ahead. I’ll be honest with you. If I still had every engine that I ever sold, it would cover 50 acres.”

Kenny says he’s always had an interest in mechanical things, but it began to ramp up about 40 years ago when he and Wendy and their children became regulars at the Tri-State Gas Engine & Tractor Assn. show at Portland, Ind. “We’d use our mad money to buy an engine,” Wendy recalls. “A couple of our daughters just grew up knowing about engines. We would buy almost anything; pretty soon we had a barn full of common engines.”

As time passed, the couple’s preference shifted to better engines. They’d trade several common pieces to get one special engine. As word got around that he was an active buyer, Kenny began to get calls from people looking to sell entire collections. He’d keep the one engine he was interested in and spin off the rest.

Focus on engines

Today, the couple’s collection has spread to other categories. “Our interests are so varied,” Kenny explains. “We like steam engines, gas engines and hot air engines, and we have things in all of those categories.” Tractors too. “There really isn’t anything in agricultural-type things that we don’t like,” Wendy says. “Anything mechanical, railroad lights and lanterns and everything in between. Myself, I collect toy sewing machines and children’s treadle machines.”

Kenny’s gas engine collection showcases rare, historic pieces. Perhaps his most unusual engine is an operational 3/4-scale model of the 1867 Otto-Langen hydrogen engine. Built by Wayne Grenning, the model is a copy of an engine originally used to power a jeweler’s lathe or similar small device. “I buy tanks of hydrogen at a welding supply shop to use as fuel,” Kenny says. “Usually we run the engine every year at our show.”

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