# Relationship history for MSHA mine 0100741

Current hierarchy: **Taylor Walter Scott Sr & Jr → Taylor Coal Company Inc → Short Creek 2400 Pit No 63-1 Strip**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Taylor Coal Company Inc → Short Creek 2400 Pit No 63-1 Strip; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Taylor Walter Scott Sr & Jr → Short Creek 2400 Pit No 63-1 Strip; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Taylor Walter Scott Sr & Jr → Taylor Coal Company Inc; 1950-01-01 to current/open; source msha-controller-operator-history