{
  "title": "Check my math: Brook Farm",
  "description": "Each step, unit, source number and Seeing mark on this page. Source figures are as printed in the named books, in dollars of their own dates, 1841 to 1851; the rest is arithmetic by this site. 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",
    "Sears, My Friends at Brook Farm, 1912"
  ],
  "method": "Compiled by The What-If Observatory from the data listed"
}