{"first_publish_date": "1871", "key": "/works/OL13136552W", "title": "A History of Massachusetts in the Civil War", "authors": [{"type": "/type/author_role", "author": {"key": "/authors/OL6031505A"}}], "type": {"key": "/type/work"}, "covers": [6052630], "subjects": ["History", "Regimental histories"], "latest_revision": 6, "revision": 6, "created": {"type": "/type/datetime", "value": "2009-12-11T08:40:33.920388"}, "last_modified": {"type": "/type/datetime", "value": "2025-02-11T18:21:23.940614"}}