For older and oddball stuff, the task its much more difficult. Though there are checklists available, most just list the player and the card numbers. Team designations are missing.
Without a doubt, the best resource for team sets was Teamsets4u.com. The website had hundreds of sets going back to the turn of the century broken down by teams. The site was invaluable to me when I was putting my Cubs sets together. I used it not only for the checklists, but I also made several set purchases from the site. I consulted it just a couple weeks back when I got the 1978 Grand Slam set.
A few days ago Nightowl had a couple tweets about Teamsets4u. The news he shared was disturbing and disappointing.
Here is the team set checklist homepage.
And this is what the site looks like now. It looks much more professional now. But....
The team checklists are gone. They are not a part of the new site.
And that stinks!
I know that the site is there to make sales. But many people were introduced to the site because of the checklists. I'm sure they drove plenty of traffic to the site. Bloggers like myself mentioned the site, too, and they should have brought eyeballs and potential customers to the site.
That's all changed now. A fantastic resource is gone.
I've got no good reason to go to the site any longer, and I can't see a reason to talk about it here any longer, either.
My only hope is that the checklists will reappear later; that they are just temporarily gone as the site transitions to the new setup.