# Relationship history for MSHA mine 4001437

Current hierarchy: **Roger E  West → Pee Wee Mining Inc → 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

- **controller_controls_mine:** Sexton James C → No 1 Tipple; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Paint Rock Coal & Lumber Company → No 1 Tipple; 1973-07-01 to 1979-04-30; source msha-controller-operator-history
- **controller_controls_operator:** Sexton James C → Paint Rock Coal & Lumber Company; 1973-07-01 to 1979-04-30; source msha-controller-operator-history
- **controller_controls_mine:** Roger E  West → No 1 Tipple; 1977-06-15 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Pee Wee Mining Inc → No 1 Tipple; 1979-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Roger E  West → Pee Wee Mining Inc; 1979-05-01 to current/open; source msha-controller-operator-history