Koldness - greetings from down the road in Waterloo! You may find this site helpful:
http://www.kingstonmouldings.com/h&ttidtugbuild.htmYou might also like to explore the vast database at:
http://users.skynet.be/sky42086/tugslistpage01.htmlIt's a bit fiddly as I recollect, but a vast number of tugs are listed, including nearly 200 TIDs. My recollection is that you have to download the database to get an Access file which must then be unzipped (but perhaps the program does this for you, I don't remember). You then find the file on your system and click on the item "tuglistoo.mdb". You can then click on any named tug to get a host of detail regarding ownership, dimensions and history. The TIDs are listed by number and you will find them in alphabetical order near the bottom of the whole list.
This db will also probably give you the name and date of the builder - do a google on that too, because you might get really lucky and find that the builder's records are on file somewhere. Then you get busy writing around. I had only one piece of luck, finding that records for the builder of "my" tug were on file at a university, which kindly sent me what they had - but it was disappointingly little. But anyway, try your own luck.
Following the war, many went to shipping companies and acquired names. Armed with a name, you can then do a google search (you can use the TID # for this also) and if you are lucky, you will find a photo and perhaps other data.