# Relationship history for MSHA mine 1513434

Current hierarchy: **Bobby Joe  Hensley → Hensley Brothers Mining Inc → No 2 Mine**

- 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:** Bobby Joe  Hensley → No 2 Mine; 1980-11-21 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Bianchi & Cochran Trucking Company → No 2 Mine; 1982-04-01 to 1982-08-08; source msha-controller-operator-history
- **controller_controls_mine:** Cochran Lloyd Et Al → No 2 Mine; 1982-04-01 to 1982-08-08; source msha-controller-operator-history
- **controller_controls_operator:** Cochran Lloyd Et Al → Bianchi & Cochran Trucking Company; 1982-04-01 to 1982-08-08; source msha-controller-operator-history
- **operator_operates_mine:** Hensley Brothers Mining Inc → No 2 Mine; 1982-08-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bobby Joe  Hensley → Hensley Brothers Mining Inc; 1982-08-09 to current/open; source msha-controller-operator-history