Crazy Notes Left Behind by a Time Traveler

I stayed at a boarding house for weird traveling artists like me. I found some notes in the room where I stayed. When I brought them to the proprietor she became mildly irate and told me a wild story about the guy who left the notes in the room. This dude has been around. Some pics to prove it are here: https://commercialherschel.substack.com/p/time-travelers-crazy-notes-pictures-to-prove-it