# Relationship history for MSHA mine 1502403

Current hierarchy: **Terry  Moore → T M Coal Company → No 1**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Hellier Fuel Company → No 1; 1950-01-01 to 1976-01-06; source msha-controller-operator-history
- **controller_controls_mine:** Rowe Marlin → No 1; 1950-01-01 to 1980-01-31; source msha-controller-operator-history
- **controller_controls_operator:** Rowe Marlin → Hellier Fuel Company; 1950-01-01 to 1976-01-06; source msha-controller-operator-history
- **controller_controls_mine:** Fleming Danny E → No 1; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Freeman Bruce Et Al → No 1; 1972-12-02 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Fleming Mining Company → No 1; 1976-01-07 to 1976-07-05; source msha-controller-operator-history
- **controller_controls_operator:** Fleming Danny E → Fleming Mining Company; 1976-01-07 to 1976-07-05; source msha-controller-operator-history
- **operator_operates_mine:** Eastern Greg Coal Company → No 1; 1976-07-06 to 1980-11-30; source msha-controller-operator-history
- **controller_controls_mine:** Ratliff Gary D → No 1; 1976-07-06 to 1980-11-30; source msha-controller-operator-history
- **controller_controls_operator:** Ratliff Gary D → Eastern Greg Coal Company; 1976-07-06 to 1980-11-30; source msha-controller-operator-history
- **controller_controls_mine:** Slone Roger & Robert → No 1; 1980-10-21 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Calahan Elkhorn Coal Company Inc → No 1; 1980-12-01 to 1981-11-17; source msha-controller-operator-history
- **controller_controls_operator:** Freeman Bruce Et Al → Calahan Elkhorn Coal Company Inc; 1980-12-01 to 1981-11-17; source msha-controller-operator-history
- **operator_operates_mine:** Lenard Coal Company → No 1; 1981-11-18 to 1982-10-25; source msha-controller-operator-history
- **controller_controls_mine:** Smallwood Lenard → No 1; 1981-11-18 to 1982-10-25; source msha-controller-operator-history
- **controller_controls_operator:** Smallwood Lenard → Lenard Coal Company; 1981-11-18 to 1982-10-25; source msha-controller-operator-history
- **operator_operates_mine:** Flat Fork Coal Company Inc → No 1; 1982-10-26 to 1984-06-10; source msha-controller-operator-history
- **controller_controls_operator:** Slone Roger & Robert → Flat Fork Coal Company Inc; 1982-10-26 to 1984-06-10; source msha-controller-operator-history
- **operator_operates_mine:** T M Coal Company → No 1; 1984-06-11 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Terry  Moore → No 1; 1984-06-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Terry  Moore → T M Coal Company; 1984-06-11 to current/open; source msha-controller-operator-history