# Relationship history for MSHA mine 1001895

Current hierarchy: **Kris  Bird → Kirtley Creek Mining LLC → Kirtley 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Kirtley Creek J V → Kirtley Creek Mine; 1993-11-01 to 2009-05-19; source msha-controller-operator-history
- **controller_controls_mine:** La Moure Buster → Kirtley Creek Mine; 1993-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** La Moure Buster → Kirtley Creek J V; 1993-11-01 to 2009-05-19; source msha-controller-operator-history
- **operator_operates_mine:** Kirtley Creek Adventures → Kirtley Creek Mine; 2009-05-20 to 2013-09-02; source msha-controller-operator-history
- **controller_controls_mine:** David  Cockrell → Kirtley Creek Mine; 2009-05-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David  Cockrell → Kirtley Creek Adventures; 2009-05-20 to 2013-09-02; source msha-controller-operator-history
- **operator_operates_mine:** Kirtley Creek Mining LLC → Kirtley Creek Mine; 2013-09-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kris  Bird → Kirtley Creek Mine; 2013-09-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kris  Bird → Kirtley Creek Mining LLC; 2013-09-03 to current/open; source msha-controller-operator-history