Many northern spectators (during the American Civil War) showed up at war zones (& generally could be seen picnicking as well as viewing battles from a far, for they believed that the South generally did not stand a chance against the North (as the North had a larger population (hence a larger army), as well as more equipments (as the North was more industrialized then the South), and that the South would not actually give a hard fight for their liberty.
Most research uses both primary and secondary sources. They complement each other to help you build a convincing argument. Primary sources are more credible as evidence, but secondary sources show how your work relates to existing research.
The Mormons traveled the Mormon trail which was approximately 2,000 miles long. The walked this trail in hopes to find areas to build new homes and create a community for themselves.