# Relationship history for MSHA mine 4406036

Current hierarchy: **Plaster Jackie L → P & W Mine Parts & Services Inc → 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Mack  Stiltner et al → Mine No 1; 1974-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Perry Allen  Whited → Mine No 1; 1974-10-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** South Atlantic Coal Company Inc → Mine No 1; 1976-02-16 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** J & R Coal Company Inc → Mine No 1; 1984-04-01 to 1987-02-22; source msha-controller-operator-history
- **controller_controls_operator:** Mack  Stiltner et al → J & R Coal Company Inc; 1984-04-01 to 1987-02-22; source msha-controller-operator-history
- **operator_operates_mine:** Permac Inc → Mine No 1; 1987-02-23 to 1987-05-04; source msha-controller-operator-history
- **controller_controls_operator:** South Atlantic Coal Company Inc → Permac Inc; 1987-02-23 to 1987-05-04; source msha-controller-operator-history
- **operator_operates_mine:** Davis & Whited Coal Company Inc → Mine No 1; 1987-05-05 to 1988-01-05; source msha-controller-operator-history
- **controller_controls_operator:** Perry Allen  Whited → Davis & Whited Coal Company Inc; 1987-05-05 to 1988-01-05; source msha-controller-operator-history
- **operator_operates_mine:** P & W Mine Parts & Services Inc → Mine No 1; 1988-01-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Plaster Jackie L → Mine No 1; 1988-01-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Plaster Jackie L → P & W Mine Parts & Services Inc; 1988-01-06 to current/open; source msha-controller-operator-history