# Relationship history for MSHA mine 1511687

Current hierarchy: **Davis Carlton-Joel C Rich → Jellikohl Inc → Jellikohl Mine 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Crook James W → Jellikohl Mine No 1; 1977-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** J C Coal Company → Jellikohl Mine No 1; 1978-11-01 to 1979-06-03; source msha-controller-operator-history
- **controller_controls_operator:** Crook James W → J C Coal Company; 1978-11-01 to 1979-06-03; source msha-controller-operator-history
- **operator_operates_mine:** Jellikohl Inc → Jellikohl Mine No 1; 1979-06-04 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Davis Carlton-Joel C Rich Et Al → Jellikohl Mine No 1; 1979-06-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Davis Carlton-Joel C Rich Et Al → Jellikohl Inc; 1979-06-04 to current/open; source msha-controller-operator-history