Here’s a link to the Nicholson Whaling Collection at the Providence Public Library. It has a huge archive of whaling vessel logbooks full of squirrelly handwriting and cryptic doodles.
I’ve only poked at the thing haphazardly, but one of my favorites is the log of the Levanter out of Boston, MA from 1861. It’s reel #397 if you scroll down. The ship’s master is listed as simply “Clifford”. The picture above comes from that log as do the following doodles, including a ship board obituary:
The files are big and take a while to load. I suggest if you want to peruse them that you view the PDFs at 25% their size. It makes scrolling easier.
This is one of those things I have no idea what use I have for it, but take great joy in knowing exists.