# Relationship history for MSHA mine 0102209

Current hierarchy: **Gussie  Phillips → Hickory Bend Farms Inc → Chapman 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Chapman Gravel → Chapman Pit; 1980-04-01 to 1983-07-26; source msha-controller-operator-history
- **controller_controls_mine:** Chapman L D → Chapman Pit; 1980-04-01 to 1983-07-26; source msha-controller-operator-history
- **controller_controls_operator:** Chapman L D → Chapman Gravel; 1980-04-01 to 1983-07-26; source msha-controller-operator-history
- **operator_operates_mine:** Newton Trucking & Mining Inc → Chapman Pit; 1983-07-27 to 1984-01-30; source msha-controller-operator-history
- **controller_controls_mine:** Newton Trucking & Mining Inc → Chapman Pit; 1983-07-27 to 1984-01-30; source msha-controller-operator-history
- **controller_controls_operator:** Newton Trucking & Mining Inc → Newton Trucking & Mining Inc; 1983-07-27 to 1984-01-30; source msha-controller-operator-history
- **operator_operates_mine:** Wiregrass Construction Company Inc → Chapman Pit; 1984-01-31 to 1987-02-22; source msha-controller-operator-history
- **controller_controls_mine:** Harper Henry J → Chapman Pit; 1984-01-31 to 1997-02-23; source msha-controller-operator-history
- **controller_controls_operator:** Harper Henry J → Wiregrass Construction Company Inc; 1984-01-31 to 1987-02-22; source msha-controller-operator-history
- **operator_operates_mine:** Hickory Bend Farms Inc → Chapman Pit; 1987-02-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Gussie  Phillips → Chapman Pit; 1987-02-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gussie  Phillips → Hickory Bend Farms Inc; 1987-02-23 to current/open; source msha-controller-operator-history