# Relationship history for MSHA mine 1512484

Current hierarchy: **M Lynn  Parrish → Coal Mac Sales → Commonwealth No 1 Tipple**

- 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:** Commonwealth Mining Company Inc → Commonwealth No 1 Tipple; 1980-08-01 to 1981-08-05; source msha-controller-operator-history
- **controller_controls_mine:** Adkins John A & Michael Templeman → Commonwealth No 1 Tipple; 1980-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Adkins John A & Michael Templeman → Commonwealth Mining Company Inc; 1980-08-01 to 1981-08-05; source msha-controller-operator-history
- **controller_controls_mine:** M Lynn  Parrish → Commonwealth No 1 Tipple; 1981-01-13 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Coal Mac Sales → Commonwealth No 1 Tipple; 1981-08-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** M Lynn  Parrish → Coal Mac Sales; 1981-08-06 to current/open; source msha-controller-operator-history