title: Parkman's crack-up: a Bostonian on the Oregon Trail.
authors.forename: H
authors.initials: H
authors.lastname: Beaver
mesh_terms: D005101:Expeditions / Q000266:history*; D049711:History, Modern 1601-; D008091:Literature / Q000266:history*; D001523:Mental Disorders / Q000266:history*; D014195:Travel / Q000266:history*; D014481:United States