# Relationship history for MSHA mine 1508626

Current hierarchy: **Middleton Wendell L → C C C Coal Corp → #1 Deep Mine**

- 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:** Fred  Morgenstern et al → #1 Deep Mine; 1974-03-02 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** L P Coal Company Inc → #1 Deep Mine; 1975-09-01 to 1982-11-08; source msha-controller-operator-history
- **controller_controls_operator:** Fred  Morgenstern et al → L P Coal Company Inc; 1975-09-01 to 1982-11-08; source msha-controller-operator-history
- **controller_controls_operator:** David  Morgenstern et al → L P Coal Company Inc; 1975-09-01 to 1982-11-08; source msha-controller-operator-history
- **operator_operates_mine:** T & L Coal Corp → #1 Deep Mine; 1982-11-09 to 1984-06-06; source msha-controller-operator-history
- **controller_controls_mine:** Tyree Charles E Et Al → #1 Deep Mine; 1982-11-09 to 1984-06-06; source msha-controller-operator-history
- **controller_controls_operator:** Tyree Charles E Et Al → T & L Coal Corp; 1982-11-09 to 1984-06-06; source msha-controller-operator-history
- **operator_operates_mine:** Cheyenne Coal Corp → #1 Deep Mine; 1984-06-07 to 1986-12-16; source msha-controller-operator-history
- **controller_controls_mine:** Mullins Stacy → #1 Deep Mine; 1984-06-07 to 1986-12-16; source msha-controller-operator-history
- **controller_controls_operator:** Mullins Stacy → Cheyenne Coal Corp; 1984-06-07 to 1986-12-16; source msha-controller-operator-history
- **controller_controls_mine:** Lonnie  Strunk → #1 Deep Mine; 1986-11-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Buckeye Springs Coal Inc → #1 Deep Mine; 1986-12-17 to 1988-07-19; source msha-controller-operator-history
- **controller_controls_operator:** Lonnie  Strunk → Buckeye Springs Coal Inc; 1986-12-17 to 1988-07-19; source msha-controller-operator-history
- **operator_operates_mine:** C C C Coal Corp → #1 Deep Mine; 1988-07-20 to 1989-01-09; source msha-controller-operator-history
- **controller_controls_mine:** Carroll Michael → #1 Deep Mine; 1988-07-20 to 1989-01-09; source msha-controller-operator-history
- **controller_controls_operator:** Carroll Michael → C C C Coal Corp; 1988-07-20 to 1989-01-09; source msha-controller-operator-history
- **operator_operates_mine:** C C C Coal Corp → #1 Deep Mine; 1989-01-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Middleton Wendell L → #1 Deep Mine; 1989-01-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Middleton Wendell L → C C C Coal Corp; 1989-01-10 to current/open; source msha-controller-operator-history