# Relationship history for MSHA mine 1514474

Current hierarchy: **Robert C  Ratliff → T R & H Development Inc → #5**

- 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:** Trojan Mining Inc → #5; 1984-03-01 to 1986-04-01; source msha-controller-operator-history
- **controller_controls_mine:** Smith Robert G → #5; 1984-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Smith Robert G → Trojan Mining Inc; 1984-03-01 to 1986-04-01; source msha-controller-operator-history
- **operator_operates_mine:** Racheal Coal Company Inc → #5; 1986-04-02 to 1990-02-20; source msha-controller-operator-history
- **controller_controls_mine:** Virgil  Isaac Jr → #5; 1986-04-02 to 1990-02-20; source msha-controller-operator-history
- **controller_controls_operator:** Virgil  Isaac Jr → Racheal Coal Company Inc; 1986-04-02 to 1990-02-20; source msha-controller-operator-history
- **controller_controls_mine:** Robert C  Ratliff → #5; 1986-09-24 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** G H Coal Company Inc → #5; 1990-02-21 to 1990-11-11; source msha-controller-operator-history
- **controller_controls_mine:** Hall George → #5; 1990-02-21 to 1990-11-11; source msha-controller-operator-history
- **controller_controls_operator:** Hall George → G H Coal Company Inc; 1990-02-21 to 1990-11-11; source msha-controller-operator-history
- **operator_operates_mine:** T R & H Development Inc → #5; 1990-11-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert C  Ratliff → T R & H Development Inc; 1990-11-12 to current/open; source msha-controller-operator-history