Q. I am looking for online 19th Century publications that talk about the Book of Mormon (1829-1844)

These publications are made available online courtesy of the Neal A. Maxwell Institute for Religious Scholarship at BYU. 

You can access them at:

http://lib.byu.edu/collections/19th-century-publications-about-the-book-of-mormon/

This is a work in progress.  Watch for new additions!

For more resources, visit https://guides.lib.byu.edu/c.php?g=216629&p=1429702 and https://guides.lib.byu.edu/bookofmormon