# Relationship history for MSHA mine 1519623

Current hierarchy: **Edward Paul  Sizemore → Clay Laurel Mining Inc → Baker Creek 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

- **operator_operates_mine:** Clay Laurel Mining Inc → Baker Creek Mine; 2011-09-07 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Edward Paul  Sizemore → Baker Creek Mine; 2011-09-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Edward Paul  Sizemore → Clay Laurel Mining Inc; 2011-09-07 to current/open; source msha-controller-operator-history