Hi John ,
Welcome from another of Scots-Irish heritage whose ancestors left VA and NC in the 1780's and settled Kentucky and Tennessee. Lots of good S&W info here so visit often. Gun photos are always welcomed. BTW, we aren't brand snobs. Most of us have, shoot and talk about all brands of firearms.
As a certified enabler here, I'm going to point you to the publication that most of us rely on for a lot of our S&W information; "The Standard Catalog of Smith and Wesson", (Supica/Nahas 2016). This book covers about anything you want to know about S&W and gives details about most every gun from beginning to today...or at least 2016, latest edition date. Well worth the cost if you really want to know about S&W's.