# Relationship history for MSHA mine 1514798

Current hierarchy: **Pinson Edward S → Candor 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

- **controller_controls_mine:** Cornett James C → No 1; 1980-08-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Linefork Coal Corp → No 1; 1984-08-01 to 1984-10-29; source msha-controller-operator-history
- **controller_controls_operator:** Cornett James C → Linefork Coal Corp; 1984-08-01 to 1984-10-29; source msha-controller-operator-history
- **operator_operates_mine:** Linefork Coal Corp → No 1; 1984-10-30 to 1986-01-22; source msha-controller-operator-history
- **controller_controls_mine:** Robinson Clyde → No 1; 1984-10-30 to 1986-01-22; source msha-controller-operator-history
- **controller_controls_operator:** Robinson Clyde → Linefork Coal Corp; 1984-10-30 to 1986-01-22; source msha-controller-operator-history
- **operator_operates_mine:** Linefork Coal Corp → No 1; 1986-01-23 to 1986-08-14; source msha-controller-operator-history
- **controller_controls_mine:** Coleman Vonda Joan → No 1; 1986-01-23 to 1986-08-14; source msha-controller-operator-history
- **controller_controls_operator:** Coleman Vonda Joan → Linefork Coal Corp; 1986-01-23 to 1986-08-14; source msha-controller-operator-history
- **operator_operates_mine:** Candor Mining Company → No 1; 1986-08-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Pinson Edward S Et Al → No 1; 1986-08-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pinson Edward S Et Al → Candor Mining Company; 1986-08-15 to current/open; source msha-controller-operator-history