Fallout 4 - Freedom Trail Code

I followed the red brick road through out Boston and found several markers with number/letter pairs.

The trail ended inside the Old Chruch where I found the "pad lock":

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Was I supposed to remember the code myself, or is it stored anywhere in the PipBoy? Or since I can't find the code in my PipBoy does this mean I didn't find all the 'stops' on the Tour?


It should have been the letters on the chalk markings you found while following Freedom's Trail.

If you don't feel like going back here's the answer:

RAILROAD

EDIT: I probably should have mentioned but as far as I saw the password wasn't stored anywhere, but I accidentally skipped a few when I went on Freedom's Trail.