# Relationship history for MSHA mine 4406753

Current hierarchy: **Mack  Stiltner → J J Coal Company Inc → Mine No 6**

- 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:** Whited Ted → Mine No 6; 1988-04-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mack  Stiltner et al → Mine No 6; 1988-11-08 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Cleco Corp → Mine No 6; 1994-03-01 to 1994-05-08; source msha-controller-operator-history
- **controller_controls_mine:** Harman J W → Mine No 6; 1994-03-01 to 1994-05-08; source msha-controller-operator-history
- **controller_controls_operator:** Harman J W → Cleco Corp; 1994-03-01 to 1994-05-08; source msha-controller-operator-history
- **operator_operates_mine:** T Coal Company Inc → Mine No 6; 1994-05-09 to 1996-01-30; source msha-controller-operator-history
- **controller_controls_operator:** Whited Ted → T Coal Company Inc; 1994-05-09 to 1996-01-30; source msha-controller-operator-history
- **operator_operates_mine:** D J Coal Inc → Mine No 6; 1996-01-31 to 1997-11-20; source msha-controller-operator-history
- **controller_controls_mine:** Dick J  Plaster → Mine No 6; 1996-01-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dick J  Plaster → D J Coal Inc; 1996-01-31 to 1997-11-20; source msha-controller-operator-history
- **operator_operates_mine:** J J Coal Company Inc → Mine No 6; 1997-11-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mack  Stiltner et al → J J Coal Company Inc; 1997-11-21 to current/open; source msha-controller-operator-history