# Relationship history for MSHA mine 1514636

Current hierarchy: **Inspiration Resources Corporation → Wheelwright Mining Inc → Bailey No 18**

- 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:** Inspiration Resources Corporation → Bailey No 18; 1982-02-03 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Mills Branch Coal Company Inc → Bailey No 18; 1984-05-01 to 1985-01-02; source msha-controller-operator-history
- **controller_controls_mine:** Smith Robert G → Bailey No 18; 1984-05-01 to 1985-01-02; source msha-controller-operator-history
- **controller_controls_operator:** Smith Robert G → Mills Branch Coal Company Inc; 1984-05-01 to 1985-01-02; source msha-controller-operator-history
- **operator_operates_mine:** B S E Inc → Bailey No 18; 1985-01-03 to 1985-09-17; source msha-controller-operator-history
- **controller_controls_mine:** George Emil → Bailey No 18; 1985-01-03 to 1985-09-17; source msha-controller-operator-history
- **controller_controls_operator:** George Emil → B S E Inc; 1985-01-03 to 1985-09-17; source msha-controller-operator-history
- **operator_operates_mine:** Little Josh Coal Company Inc → Bailey No 18; 1985-09-18 to 1988-01-14; source msha-controller-operator-history
- **controller_controls_mine:** Johnson Kenneth → Bailey No 18; 1985-09-18 to 1988-01-14; source msha-controller-operator-history
- **controller_controls_operator:** Johnson Kenneth → Little Josh Coal Company Inc; 1985-09-18 to 1988-01-14; source msha-controller-operator-history
- **operator_operates_mine:** Wheelwright Mining Inc → Bailey No 18; 1988-01-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Inspiration Resources Corporation → Wheelwright Mining Inc; 1988-01-15 to current/open; source msha-controller-operator-history