{"title": "At the extremity of civilization", "subject_places": ["California", "Oregon National Historic Trail", "Panama", "West (U.S.)"], "subjects": ["Description and travel", "Diaries", "History", "Overland journeys to the Pacific", "Physicians"], "subject_people": ["Israel Shipman Pelton Lord (b. 1805)"], "key": "/works/OL475403W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL28769A"}}], "subject_times": ["1846-1850", "1848-1860"], "type": {"key": "/type/work"}, "covers": [13842523], "latest_revision": 4, "revision": 4, "created": {"type": "/type/datetime", "value": "2009-12-08T03:04:00.036085"}, "last_modified": {"type": "/type/datetime", "value": "2026-01-27T10:25:03.043227"}}