{"public_id": "e40f814e-370d-4961-a7f7-4d9359359ac9", "provider": "public_directory", "external_id": "county-fill:office:IA-19123-county-supervisor", "source_url": "https://member-portal.iowacounties.org/countydirectory/directory/Mahaska", "source_name": "Iowa State Association of Counties: ISAC County Directory: Mahaska County", "fetched_at": "2026-10-05T20:03:13+00:00"}