Question

what type of document is? a pioneer womans westward journey in 1849

Answer 1

"Catherine Haun wrote a vivid first-hand description of her experiences
in A Pioneer Woman’s Westward Journey" ~ https://www.chatham.edu/pti/curriculum/units/2004/Roberts.pdf#page=3
(Catherine’s story of her wagon train experiences)

Answer 2

So it'd be a autobiography or a primary source; don't know what you need as your question is almost circumlatory.