Alex’ method reminds me of Dominic O’Briens method when learning new words/vocabulary. He creates different zones (for female and male) and places vocabulary throughout his zones (which are 2 different towns he knows well). I am sure that it also can be applied to things like presidents. In the case of presidents though (where the order might be of importance), you can simply add the action/object (whichever is more fitting) of your PAO.
My #01 for example is Oscar Lafontaine bathing in a fountain. This goes along perfectly with George WASHington, maybe you have a friend whose name is George, you simply imagine him washing himself in a fountain that is in your city. Yours doesn’t have a fountain? Well, now it does.
The fountain will tell you that he’s the first president. @LikeARollingStone’s example for #18 (Ulysses S. Grant) is Odysseus. Maybe your town has a museum and in front of it, Odysseus is receiving a financial grant because of his legendary heroic doings. #18 for me is Ludwig Beethoven, he could be the one handing out the grant, written on sheets of music. The grant could be S.ix million dollars.
Odysseus receives a S.ix million $ Grant by ludwig 8eethoven
I think this can be helpful whenever you hear the name of a president and would like to know his #.
This might not be the perfect example in regards to presidents (since most people have them in a memory palace) but can be applied to other things, especially vocabulary.
The town is the memory palace, you don’t even have to “pre-create” it because most things in town are not attached to a journey. You can just place them there, so it doesn’t float, while reinforcing the link. I hope all of this makes sense.
I know, I literally described the normal method memorizing things. But the “town method” could be used for things that you would like to remember but don’t really have/need a designated memory palace for (and also don’t want to create one).