# Relationship history for MSHA mine 1512286

Current hierarchy: **Jessup Malcolm L → Derek Mining Inc → Prince Christian**

- 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:** Charles  Hoke et al → Prince Christian; 1974-03-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Hoke Company Inc → Prince Christian; 1980-04-01 to 1985-07-31; source msha-controller-operator-history
- **controller_controls_operator:** Charles  Hoke et al → Hoke Company Inc; 1980-04-01 to 1985-07-31; source msha-controller-operator-history
- **controller_controls_operator:** Anne  Hoke et al → Hoke Company Inc; 1980-04-01 to 1985-07-31; source msha-controller-operator-history
- **controller_controls_mine:** Jessup Malcolm L → Prince Christian; 1982-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Derek Mining Inc → Prince Christian; 1985-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jessup Malcolm L → Derek Mining Inc; 1985-08-01 to current/open; source msha-controller-operator-history