# Relationship history for MSHA mine 1515901

Current hierarchy: **Cornelius  Rowe → Production Coal Company Inc → Jehovah**

- 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:** Potter Billy D & Jimmy R Dotson → Jehovah; 1976-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Cornelius  Rowe → Jehovah; 1984-05-24 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Potter & Dotson Coal Company Inc → Jehovah; 1987-01-01 to 1987-04-06; source msha-controller-operator-history
- **controller_controls_operator:** Potter Billy D & Jimmy R Dotson → Potter & Dotson Coal Company Inc; 1987-01-01 to 1987-04-06; source msha-controller-operator-history
- **operator_operates_mine:** Production Coal Company Inc → Jehovah; 1987-04-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cornelius  Rowe → Production Coal Company Inc; 1987-04-07 to current/open; source msha-controller-operator-history