Here are a couple jokes from the April 27, 1918 edition of The New Hampshire newspaper, which was published by New Hampshire College (now the University of New Hampshire). The newspaper didn't have a specific humor section; instead, jokes were spread throughout the paper. I assume they were used to fill any empty space in the print.
I particularly like the first one because, as a knitter, I'm pretty sure I've accidentally hit a few people. I imagine this girl was knitting something for the Red Cross - in fact, just before the war's end, the college actually began drafting female students for Red Cross work.
However, it's also nice to see people making fun of English grammar throughout history.