Correction on the below - Marshall rightly points out that I was missing some earlier models.
Lincoln kayaks were much identified with a guy in Maine named Sandy Martin who was fairly early in developing sea kayaks against the surge that I saw a bit after we started regularly vacationing in Maine. From his obit - "He worked for Lincoln Canoe in the early and mid 60s, from 1977 until the mid-80s, then bought the company out of bankruptcy in 1989. With his second wife, Nancy Martin at his side, Sandy grew Lincoln to become the second oldest canoe and kayak company in the US. "
He made darned fine boats compared to the barges that predominated when he first picked up the company. Relatively lightweight construction, responsive hulls. Sandy was also highly regarded for his clinics on boat repair. He understood fiberglass layup quite well.
Within a decade of his taking over the company the British invasion hit, at that point a lot of NDK with in some Valley in play as well. Lower decks, cockpits with molded thigh braces and boats like the Romany intended to make rolling easier. Very functional day hatches.
Sandy was highly regarded by everyone I and my husband met who had a lot to do with bringing the Brit boats in, like Tom Bergh, and his boats showed up at symposiums etc. He was a very nice guy, He ultimately got ill and sold his company to a young man who was also a really good guy, kept it going with a lot of high quality repair work and strong support of the southern Maine kayaking community.
His designs ended up being somewhat stranded due to the Brit invasion. And redoing molds is not a minor task for anyone let alone a small company. They were all too high decked to work well for a smaller paddler, but then so was everything else out there until somewhere after 2000 when kayak manufacturers noticed that a portion of their potential market was women. They were good boats and in many ways innovative for their time.
But Lincoln remained a small company, without the larger network that some of the Brit manufacturers were able to develop. And Sandy did not court a network of coaches, which was what NDK did with the Explorer and the BCU system. That alone had a huge impact on sales.
Fact is that sea kayak designs have become altogether less quirky and more mellowed out in most performance aspects than some years ago. And the buying public, what remains of that market, seems to like that. But the days of more experimentation in design made for some nice paddling.