# Relationship history for MSHA mine 1512469

Current hierarchy: **Williams Donnie & Tex → Little Mud Enterprises Inc → 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

- **controller_controls_mine:** Emmett  Lawson → No 1; 1978-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Tram Coal Company Inc → No 1; 1980-08-01 to 1983-04-13; source msha-controller-operator-history
- **controller_controls_operator:** Emmett  Lawson → Tram Coal Company Inc; 1980-08-01 to 1983-04-13; source msha-controller-operator-history
- **operator_operates_mine:** J W Coal Company → No 1; 1983-04-14 to 1983-08-29; source msha-controller-operator-history
- **controller_controls_mine:** Adkins Willard → No 1; 1983-04-14 to 1985-09-08; source msha-controller-operator-history
- **controller_controls_operator:** Adkins Willard → J W Coal Company; 1983-04-14 to 1983-08-29; source msha-controller-operator-history
- **operator_operates_mine:** F & M Coal Company Inc → No 1; 1983-08-30 to 1983-10-18; source msha-controller-operator-history
- **controller_controls_mine:** Hall Forest D Et Al → No 1; 1983-08-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hall Forest D Et Al → F & M Coal Company Inc; 1983-08-30 to 1983-10-18; source msha-controller-operator-history
- **operator_operates_mine:** Coal Industrial Corp → No 1; 1983-10-19 to 1984-02-27; source msha-controller-operator-history
- **controller_controls_mine:** Wooten C H → No 1; 1983-10-19 to 1984-02-27; source msha-controller-operator-history
- **controller_controls_operator:** Wooten C H → Coal Industrial Corp; 1983-10-19 to 1984-02-27; source msha-controller-operator-history
- **operator_operates_mine:** Soul Energy Inc → No 1; 1984-02-28 to 1984-08-23; source msha-controller-operator-history
- **controller_controls_mine:** Sawyers Billy Et Al → No 1; 1984-02-28 to 1984-08-23; source msha-controller-operator-history
- **controller_controls_operator:** Sawyers Billy Et Al → Soul Energy Inc; 1984-02-28 to 1984-08-23; source msha-controller-operator-history
- **operator_operates_mine:** D M K Coal Company Inc → No 1; 1984-08-24 to 1987-06-01; source msha-controller-operator-history
- **controller_controls_mine:** Barton Delmar → No 1; 1984-08-24 to 1987-06-01; source msha-controller-operator-history
- **controller_controls_operator:** Barton Delmar → D M K Coal Company Inc; 1984-08-24 to 1987-06-01; source msha-controller-operator-history
- **controller_controls_mine:** Bridgeman James Et Al → No 1; 1987-02-19 to 1989-02-14; source msha-controller-operator-history
- **operator_operates_mine:** Steer Fork Mining Company → No 1; 1987-06-02 to 1989-02-14; source msha-controller-operator-history
- **controller_controls_operator:** Bridgeman James Et Al → Steer Fork Mining Company; 1987-06-02 to 1989-02-14; source msha-controller-operator-history
- **operator_operates_mine:** Dbc Coal Company Inc → No 1; 1989-02-15 to 1989-06-28; source msha-controller-operator-history
- **controller_controls_mine:** Collins David → No 1; 1989-02-15 to 1989-06-28; source msha-controller-operator-history
- **controller_controls_operator:** Collins David → Dbc Coal Company Inc; 1989-02-15 to 1989-06-28; source msha-controller-operator-history
- **operator_operates_mine:** Akers Mining Company → No 1; 1989-06-29 to 1989-09-17; source msha-controller-operator-history
- **controller_controls_mine:** Akers Dwight → No 1; 1989-06-29 to 1989-09-17; source msha-controller-operator-history
- **controller_controls_operator:** Akers Dwight → Akers Mining Company; 1989-06-29 to 1989-09-17; source msha-controller-operator-history
- **operator_operates_mine:** Little Mud Enterprises Inc → No 1; 1989-09-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Williams Donnie & Tex → No 1; 1989-09-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Williams Donnie & Tex → Little Mud Enterprises Inc; 1989-09-18 to current/open; source msha-controller-operator-history