If Chris Van Dusen knew his sea otter shirt was going to be world famous, he probably wouldn’t have thrown it away.

He created the shirt’s image, two sleepy-eyed sea otters wrapped in kelp and floating on their backs, some 35 years ago. He hadn’t thought about it at all until October, when pop star Taylor Swift made the shirt a sensation by wearing it in a movie promoting her latest album, “The Official Release Party of a Showgirl.” Swifties went crazy for the shirt, trying to find one anywhere they could.

Van Dusen, who designed the shirt’s image when he was working as a freelance illustrator in the early 1990s, started by checking his closets.

“I know I had one, because they gave me one after it was first printed. I think I ended up tossing it because it was just taking up space,” said Van Dusen, 65, now a nationally known children’s author and illustrator who lives in Camden. “I thought if I could find the shirt I could prove I did it. And maybe I’d throw it on eBay.”

Van Dusen didn’t find the shirt, but the shirt’s printer knows it was his work. Liberty Graphics, in the Midcoast town of Liberty, owns the design and began reissuing it shortly after Swift made it famous.

The shirt was originally printed for the Monterey Bay Aquarium in California. People from all over the world began donating money to the aquarium – more than $2.3 million – to get a shirt and Liberty Graphics began working overtime to fill an order for 35,000 shirts.

As of Tuesday they were still working on it. They also reached out to Van Dusen to compensate him for the new use of his illustration, and put his name on a card that is mailed with the shirt. Matt Enos, Liberty Graphics’ multimedia manager, said the company is happy that Van Dusen is “getting the recognition he deserves” for the now world-famous otters.

Van Dusen was mostly doing illustration work for magazines and ad agencies when he created the otter T-shirt design. He was working on a series of illustrations of animals and marine life for Harborside Graphics, a screen printing company in Belfast. The images were done in a realistic style to mimic the illustrations found in wildlife field guides, Van Dusen said. Several of them were created for the Monterey Bay Aquarium.

Haborside Graphics went out of business about 25 years ago and sold its designs, including ones created by Van Dusen, to Liberty Graphics. Many of Van Dusen’s works can be seen on the walls at Liberty Graphics and many of his field guide shirts are still for sale on the website, including ones with grizzly bears, raptors, sea turtles, sharks, owls and herons. But not sea otters.

“I don’t know where (Swift) got that shirt because it had been discontinued for years and years,” said Van Dusen. “Maybe she pulled it out of a rag bag or found it in a thrift shop.”

Van Dusen didn’t begin his career as a children’s book author and illustrator until about a decade after he created the otter image. He released his first book, “Down to the Sea with Mr. Magee” in 2000 and has written and illustrated a total of 12. He’s also illustrated 18 books written by other authors.

Some of his other books include  “The Circus Ship” (2009), “Hattie & Hudson” (2017) and “Big Truck, Little Island” (2022). He’s also written a series of “If I Built” books, about a child’s wild plans to create a house, a car or a school. The fourth in the series, “If I Built a Town” came out in late September.

In fact, Van Dusen was on a book tour when his otters began popping up on social media in early October. He had no idea the splash Swift and his design were making until he came home and went with his wife, Lori Van Dusen, to pick up their dog Opal from a dog day care. Van Dusen saw Lori talking to Jeff Lord, a friend who works at Liberty Graphics. When Van Dusen asked Lori what she was talking to Lord about, she said she was congratulating him for “the Taylor Swift thing.”

“She told me Taylor Swift had been photographed wearing a shirt Liberty Graphics printed, with sea otters on it. Then she said ‘In fact, it may be one of yours,'” said Van Dusen. “We got home and she pulled it up on her phone and I said, ‘Yeah, I did that.'”