{"type": {"key": "/type/author"}, "name": "John Callow", "birth_date": "active 1794", "death_date": "1830", "key": "/authors/OL15598772A", "source_records": ["marc:harvard_bibliographic_metadata/20220215_007.bib.mrc:124849771:2627"], "latest_revision": 1, "revision": 1, "created": {"type": "/type/datetime", "value": "2025-06-30T15:29:49.604176"}, "last_modified": {"type": "/type/datetime", "value": "2025-06-30T15:29:49.604176"}}