# Relationship history for MSHA mine 4801046

Current hierarchy: **Ray  Garland → S & M Construction Inc → Potters 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

- **operator_operates_mine:** Morris Construction Company → Potters Pit; 1950-01-01 to 1978-12-13; source msha-controller-operator-history
- **controller_controls_mine:** Morris Construction Company → Potters Pit; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Morris Construction Company → Morris Construction Company; 1950-01-01 to 1978-12-13; source msha-controller-operator-history
- **operator_operates_mine:** S & M Construction Inc → Potters Pit; 1978-12-14 to 1986-04-22; source msha-controller-operator-history
- **controller_controls_mine:** Morris Gary W & William J → Potters Pit; 1978-12-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Morris Gary W & William J → S & M Construction Inc; 1978-12-14 to 1986-04-22; source msha-controller-operator-history
- **operator_operates_mine:** S & M Construction Inc → Potters Pit; 1986-04-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ray  Garland → Potters Pit; 1986-04-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ray  Garland → S & M Construction Inc; 1986-04-23 to current/open; source msha-controller-operator-history