I really need help I'm giving a lot of pints
Which source is the most credible for researching supplies needed for a wagon train journey from St. Louis, Missouri, to Salt Lake City, Utah?

A supply list for traveling the Oregon Trail in 1845, published in USA Today
A PBS documentary about daily life on a wagon train
A photo essay of wagon trains leaving St. Louis, Missouri, 1846-1860
A diary of a teacher who traveled on a wagon train to Salt Lake City