While looking for some old American newspapers from 1870-1872, mainly from Missouri, I found The Missouri Republican - St. Louis from 10th of December 1871 in which there was a poem. It's called "Infelixia" and it was written by Annie Robertson Noxen. I clipped it, the image quality is not the best, but go and take a look as it clearly says her surname is NoxEn (https://www.newspapers.com/clip/57004107/excellent-poem/). However when I tried to look up that name, I only found Annie Robertson Noxon and kinda figured it's the same person. So could this be just a typo in a newspaper? How often did that occur back in the XIX century? I also can't find any info about her and it's really frustrating since I'm trying to use this poem in my book and give credit to the author. I'm from Europe and English is not my native language so it makes my research more difficult. If somebody out there knows something about the author or has access to more of her poems, I'd really appreciate the help. Also, I tried sending an e-mail to some archives in St. Louis multiple times, but each time there was an error and I gave up.

For more context: I'm a young writer from Poland trying to write a western story that's, while fictional, grounded in reality and historically accurate here and there. I found the poem to be really beautiful and fitting for the setting (one chapter takes place in Missouri around that time hence why I looked for any newspapers from that period). I translated it to Polish and put it in a chapter with annotation. The only problem is that I'm puzzled about the surname, is it Noxon or Noxen and out of curiosity I just want to find out more about her.