# Relationship history for MSHA mine 4404484

Current hierarchy: **Roberts Palmer & Pauline Richardson → Pee Wee Augering Company → Auger Mine No 2**

- 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

- **operator_operates_mine:** Justus Trucking & Mining Inc → Auger Mine No 2; 1976-06-01 to 1977-01-02; source msha-controller-operator-history
- **controller_controls_mine:** Justus John Henry → Auger Mine No 2; 1976-06-01 to 1977-01-02; source msha-controller-operator-history
- **controller_controls_operator:** Justus John Henry → Justus Trucking & Mining Inc; 1976-06-01 to 1977-01-02; source msha-controller-operator-history
- **operator_operates_mine:** Justus Trucking & Mining Inc → Auger Mine No 2; 1977-01-03 to 1978-03-19; source msha-controller-operator-history
- **controller_controls_mine:** Prater Tolbert → Auger Mine No 2; 1977-01-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Prater Tolbert → Justus Trucking & Mining Inc; 1977-01-03 to 1978-03-19; source msha-controller-operator-history
- **controller_controls_mine:** Roberts Palmer & Pauline Richardson → Auger Mine No 2; 1977-11-03 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Pee Wee Augering Company → Auger Mine No 2; 1978-03-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Roberts Palmer & Pauline Richardson → Pee Wee Augering Company; 1978-03-20 to current/open; source msha-controller-operator-history