Unfortunately, there isn't much readily available information on his specific writings beyond a few mentions in historical sources. This suggests that while he might have been a productive writer, his works haven't received significant attention or are not widely preserved.
To find more information about his writings, you could try:
* Searching for his name in online library catalogs or archives: This might lead you to digitized copies of his work.
* Consulting academic databases or historical journals: Scholars may have written about his life and works.
* Reaching out to university libraries or historical societies: They might have collections of his writings or information about them.
* Contacting the La Follette family or descendants: They might have personal archives containing more information about his writings.
It's important to note that without further research, it's difficult to definitively say what he wrote.