# Relationship history for MSHA mine 1519054

Current hierarchy: **Larry  Thornsberry → PIA Company Inc → #5**

- 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:** Larry  Thornsberry et al → #5; 1982-06-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Paul E Alexander et al → #5; 2005-08-22 to 2006-10-15; source msha-controller-operator-history
- **controller_controls_mine:** Suzette  Meenach et al → #5; 2006-10-16 to 2013-05-09; source msha-controller-operator-history
- **operator_operates_mine:** Mountain Source Energy LLC → #5; 2006-10-23 to 2008-03-02; source msha-controller-operator-history
- **controller_controls_operator:** Paul E Alexander et al → Mountain Source Energy LLC; 2006-10-23 to 2006-10-15; source msha-controller-operator-history
- **controller_controls_operator:** Clyde  Mennach et al → Mountain Source Energy LLC; 2006-10-23 to 2006-10-15; source msha-controller-operator-history
- **controller_controls_operator:** Suzette  Meenach et al → Mountain Source Energy LLC; 2006-10-23 to 2008-03-02; source msha-controller-operator-history
- **controller_controls_operator:** Clyde  Meenach  et al → Mountain Source Energy LLC; 2006-10-23 to 2008-03-02; source msha-controller-operator-history
- **operator_operates_mine:** PIA Company Inc → #5; 2008-03-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Larry  Thornsberry et al → PIA Company Inc; 2008-03-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Steven R  Adkins et al → #5; 2013-05-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steven R  Adkins et al → Mountain Source Energy LLC; 2013-05-10 to 2008-03-02; source msha-controller-operator-history
- **controller_controls_operator:** Clyde E  Meenach et al → Mountain Source Energy LLC; 2013-05-10 to 2008-03-02; source msha-controller-operator-history