{"@context":{"@vocab":"https://schema.org/"},"@type":"ItemList","@id":"https://api.morvs.ai/api/v1/msha/by-controller?name=Knowlton%20W%20B%20Jr%20%26%20D%20E","controller":"Knowlton W B Jr & D E","_source":{"data_provider":"AI Analytics","brand_name":"MORVS","brand_url":"https://morvs.ai/","data_provider_url":"https://api.morvs.ai","license":"https://creativecommons.org/publicdomain/zero/1.0/","primary_source":"https://arlweb.msha.gov/OpenGovernmentData/OGIMSHA.asp","generated_at":"2026-10-04T21:16:46.631Z"},"count":2,"truncated":false,"mines":[{"mine_id":"3303535","mine_name":"Knowlton Strip","coal_metal_ind":"C","mine_type":"Surface","mine_status":"Abandoned","state":"OH","county_name":"Noble","controller_name":"Knowlton W B Jr & D E","operator_name":"Knowltons Industries","num_employees":0,"primary_canvass":"Coal","canonical_url":"https://api.morvs.ai/mine/3303535"},{"mine_id":"3303951","mine_name":"Norma (Strip)","coal_metal_ind":"C","mine_type":"Surface","mine_status":"Abandoned","state":"OH","county_name":"Perry","controller_name":"Knowlton W B Jr & D E","operator_name":"Knowltons Industries","num_employees":0,"primary_canvass":"Coal","canonical_url":"https://api.morvs.ai/mine/3303951"}]}