RE: What make of trawler do I have??
If your vessel is documented or has ever been documented , you can look it up in the Federal Documentation Database. It may have the origin information in the record or you can order a abstract from the Coast Guard Documentation Office that is like a house title search, it gives the complete history if the vessel as it has been recorded by the documentation process.
You can also look up the hull ID (HIN) using the boat manufacturing database to get information on the business that issued the HIN. I have a Cheermen that was sold by Marin Yacht Sales , a business that no longer exists but it helped me trace the origin back to the shipyard that built the boat.
I have found that getting in depth details about these older trawlers uses the same process as ancestry.com. It takes time and you have to use creative means to follow the facts as they unfold.