Interesting discovery. Starcraft is one of the older manufacturers. They were building steel boats in the 20s, fiberglass boats in the 50s, and pop-up campers by the 60s.
Somewhere in there, the original Star Tank Company sold the RV business to Jayco and the boat business to Brunswick which was (and I think still is) the largest boat builder in the world. Jayco is now part of Thor, of course.
I have no idea if the Starcraft and Cruisers cross-bred or if one or the other simply did a "splash mold" and churned out a twin...
Florida Keys and far Northern Vermont
2009 Fun Finder XT245
2013 GMC Sierra