{
  "title": "Brook Farm ledger, 1841 to 1851",
  "description": "Dated money items from the printed records of Brook Farm, each with its qualifier and source. In dollars of their own dates, not adjusted. The original papers were not read. CC BY 4.0.",
  "license": "CC BY 4.0",
  "license_url": "https://creativecommons.org/licenses/by/4.0/",
  "creator": "The What-If Observatory",
  "page": "https://whatifobservatory.com/utopias/brook-farm/",
  "derived_from": [
    "Swift, Brook Farm, 1900",
    "Frothingham, George Ripley, 1882",
    "Codman, Brook Farm, 1894",
    "Lathrop, biographical sketch, 1883"
  ],
  "method": "Compiled by The What-If Observatory from the data listed"
}