This collection contains correspondence to Dave Mellor from the Lewis and Clark Heritage Foundation, an organization whose members are dedicated scholars of the Corps of Discovery's expedition to map the Louisiana Purchase. Other items also originating from that organization are copies of their member's only journal "We Proceeded On", foundation notes from meetings, and plans for the annual gathering of all the members (usually at a location pertinent to the Lewis and Clark expedition in some way), newsletters informing members of upcoming activities.
Aside from the material from the Heritage Foundation, there are also pamphlets from various tourist sites located on the trail; some are actual locations the Corps of Discovery passed by (Pompey's Pillar, the Lolo Trail, Fort Clatsop), whereas others are cities and towns located near these historic locations. Others are simply named for the explorers (Lewis and Clark Lake), and others relate to the Native Americans the Corps of Discovery encountered on their journey (Big Hole Battlefield, a site sacred to the Nez Perce). A number of magazine articles on the expedition are included, topics cover such as the environmental impact on some of the historic sites, Meriwether Lewis's death, Sacagawea's biography, and later, her gold dollar coin, Thomas Jefferson, both about his shrewdness in making the Louisiana Purchase and the controversy surrounding his relationship with his slave Sally Hemings, descendants of Lewis, Clark, and other members of the Corps of Discovery meeting together to travel the Expedition trail on the 200th Anniversary of the Expedition, and the plight of the Columbia River. Most of the remaining material is a re-hash of all of these topics, save for a couple of unique articles (including a biographical account of Sacagawea's son, Jean-Baptiste Charbonneau).
