# Relationship history for MSHA mine 4404635

Current hierarchy: **Templeton Marvin V & Sons Inc → Marvin V Templeton & Sons Inc → Mine No 3**

- 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:** Marvin V Templeton & Sons Inc → Mine No 3; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Templeton Marvin V & Sons Inc → Mine No 3; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Templeton Marvin V & Sons Inc → Marvin V Templeton & Sons Inc; 1950-01-01 to current/open; source msha-controller-operator-history