I don't want this to turn into a model id thread even though this is one of our objectives. I'm just not sure how I want to handle that, yet. For now suffice it to say there are many familiar models in the catalogs having unfamiliar names. Some of these may be the girls' real names, some changed their stage name later, and some may of used a particular name only for TLI. Some I've seen are Ann Dickerson (Blake Mitchell), April Thompson (April Maye), Brandy Cruise (Dina DeVille), Cecely Donovan (Chrissy Beauchamp), Rhonda Lee (Rachel Ashley), etc, etc, etc.
The Main catalog for the year was published first then the Winter, Spring, Summer, and Autumn supplements were normally published in this order. Additionally there were special catalogs or supplements published at random times such as for slides, prints or videos only. Here is the 1991 Winter Supplement (my scans). The way you see it here is the same way you would see it unfolded.