# Relationship history for MSHA mine 0402696

Current hierarchy: **Reed Family Companies → George Reed Inc → Munn & Perkins Pit & Mill**

- 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:** Reed Family Companies → Munn & Perkins Pit & Mill; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Munn & Perkins Inc → Munn & Perkins Pit & Mill; 1950-01-01 to 1984-09-30; source msha-controller-operator-history
- **controller_controls_mine:** Robert E Perkins → Munn & Perkins Pit & Mill; 1950-01-01 to 1984-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Robert E Perkins → Munn & Perkins Inc; 1950-01-01 to 1984-09-30; source msha-controller-operator-history
- **operator_operates_mine:** George Reed Inc → Munn & Perkins Pit & Mill; 1984-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Reed Family Companies → George Reed Inc; 1984-10-01 to current/open; source msha-controller-operator-history