# Relationship history for MSHA mine 1513175

Current hierarchy: **Seacat Vaughn → Seacat Coal Inc → No 4**

- 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:** Lar Coal Inc → No 4; 1981-10-01 to 1983-07-11; source msha-controller-operator-history
- **controller_controls_mine:** Hunsaker James Larry & Gary Russell → No 4; 1981-10-01 to 1983-07-11; source msha-controller-operator-history
- **controller_controls_operator:** Hunsaker James Larry & Gary Russell → Lar Coal Inc; 1981-10-01 to 1983-07-11; source msha-controller-operator-history
- **controller_controls_mine:** Seacat Vaughn → No 4; 1983-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Seacat Coal Inc → No 4; 1983-07-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Seacat Vaughn → Seacat Coal Inc; 1983-07-12 to current/open; source msha-controller-operator-history