# Relationship history for MSHA mine 3501451

Current hierarchy: **John C  Bryant → J Arlie Bryant Inc → Raker Point Pit 1833 Trs**

- 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:** John C  Bryant → Raker Point Pit 1833 Trs; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** U S Forest Service → Raker Point Pit 1833 Trs; 1950-01-01 to 1978-08-31; source msha-controller-operator-history
- **controller_controls_mine:** United States Government → Raker Point Pit 1833 Trs; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** United States Government → U S Forest Service; 1950-01-01 to 1978-08-31; source msha-controller-operator-history
- **operator_operates_mine:** J Arlie Bryant Inc → Raker Point Pit 1833 Trs; 1978-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John C  Bryant → J Arlie Bryant Inc; 1978-09-01 to current/open; source msha-controller-operator-history