# Relationship history for MSHA mine 2302082

Current hierarchy: **Tim L  Bailey → Bailey'S Sand & Gravel → BAILEY'S S & G #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:** Bailey Sand & Gravel → BAILEY'S S & G #1; 1993-05-01 to 1995-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Harold  Bailey → BAILEY'S S & G #1; 1993-05-01 to 1995-07-31; source msha-controller-operator-history
- **controller_controls_operator:** Harold  Bailey → Bailey Sand & Gravel; 1993-05-01 to 1995-05-31; source msha-controller-operator-history
- **operator_operates_mine:** Bailey'S Sand & Gravel → BAILEY'S S & G #1; 1995-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Tim L  Bailey → BAILEY'S S & G #1; 1995-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tim L  Bailey → Bailey'S Sand & Gravel; 1995-06-01 to current/open; source msha-controller-operator-history