So being a sports card collector and a history nerd, when my son and I visited Independence National Historic park in 2018, we found that there were a lot of trading cards from a variety of sets that could be collected at the various sites.
Some of the sets were old and they did not have all of the cards from the sets, others we were able to get a complete set of. They even found two old cards buried in the archives and gave them to my son. It appears that there are three distinct sets there: "Faces of Independence," "Heroes of the Underground Railroad," and "Civil War to Civil Rights" - which is par of a much larger NPS set from the 150th Aniv. of the Civil War.
Here is a checklist from the Heroes of the Underground Railroad set: I have no idea of the year.
http://npshistory.com/brochures/trading-cards/inde/heroes-of-the-underground-railroad-checklist-instruction-card.pdf
I can confirm that all of the cards exist because I have all of them.
Here is the checklist for the "Civil War to Civil Rights" https://www.flickr.com/photos/tradingcardsnpsyahoocom/albums/72157629788657326
We were able to acquire two of the cards from this set. (Camp Independence and Edward Baker...apparenty the Lincoln card is the most difficult to find there. At least thats what we heard from the Park Rangers).
Here is a checklist for "Faces of Independence."
http://npshistory.com/brochures/trading-cards/inde/set-trading-card-checklist.pdf
However, I believe this is an older version of the set because when we were there in 2018, they were giving out the set, but a newer version of the cards. The only card we got from this set is Absolom Jones from set 4.
The cards we got primarily had the same front, but a different back, but with the same bio info. Some cards changed, for example I have a stand alone Dolley Madison and a stand alone James Madison, while this version has her and James on the same card. I am fairly certain we have the complete set that they gave out in 2018, but I am not sure when it was first produced.
Here are the cards from the 2018 version that we have:
George Washington
James Madison
Thomas Jefferson
John Adams
The Liberty Bell
Absalom Jones
William Penn
Ben Franklin
Phillis Wheatley
Alexander Hamilton
Martha Washington
Independence Hall
Marquis de Lafayette
Joseph Brandt
Dolley Madison
Finally, we have two stand alone cards from two NPS sites that are nearby and run by the same rangers, but are not related to Independence.
Edgar Allen Poe NHS http://npshistory.com/brochures/trading-cards/edal/edgar-allan-poe.pdf
Thaddeus Kosciuszko NHS http://npshistory.com/brochures/trading-cards/thko/thaddeus-kosciuszko.pdf
We also got a random, stand alone card of William Bartram http://npshistory.com/brochures/trading-cards/inde/william-bartram.pdf This may be from a larger set from multiple NPS sites. Not sure, but it is larger and does not fit into pages, so it is a bit annoying.
If these sets are in the database, I have not found them. If not, I am willing to help out with them, however I have never tried to add a set to the datebase. I know you need a complete checklist. I am not sure if there is one anywhere other than the ones I linked to. I also would not know how to label the sets since there does not appear to be a year associated with them that I know of.