# Relationship history for MSHA mine 4202732

Current hierarchy: **Roger R Peck; Melissa A Peck → RAM-X Inc. → Milford Pit**

- 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:** Melissa A Peck et al → Milford Pit; 2018-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** RAM-X Inc. → Milford Pit; 2021-10-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Melissa A Peck et al → RAM-X Inc.; 2021-10-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Roger R Peck et al → RAM-X Inc.; 2021-10-16 to current/open; source msha-controller-operator-history