# Relationship history for MSHA mine 1514117

Current hierarchy: **Fuson Junior S → 92 Mining Company → No 1**

- 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:** Fuson Coal Company → No 1; 1983-07-01 to 1985-12-12; source msha-controller-operator-history
- **controller_controls_mine:** Fuson Lloyd → No 1; 1983-07-01 to 1987-02-18; source msha-controller-operator-history
- **controller_controls_operator:** Fuson Lloyd → Fuson Coal Company; 1983-07-01 to 1985-12-12; source msha-controller-operator-history
- **controller_controls_mine:** Fuson Junior S → No 1; 1984-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Fuson Coal Company → No 1; 1985-12-13 to 1986-01-06; source msha-controller-operator-history
- **controller_controls_mine:** Fuson Ronnie → No 1; 1985-12-13 to 1986-01-06; source msha-controller-operator-history
- **controller_controls_operator:** Fuson Ronnie → Fuson Coal Company; 1985-12-13 to 1986-01-06; source msha-controller-operator-history
- **operator_operates_mine:** 92 Mining Company → No 1; 1986-01-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Fuson Junior S → 92 Mining Company; 1986-01-07 to current/open; source msha-controller-operator-history