# Relationship history for MSHA mine 1001932

Current hierarchy: **Larry  Gillingham → Gillingham Construction  Inc → Gillingham Const Inc**

- 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  Gillingham → Gillingham Const Inc; 1987-03-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Can-Ada Crushing & Gravel Co → Gillingham Const Inc; 1997-11-01 to 2003-11-18; source msha-controller-operator-history
- **controller_controls_mine:** Kevin L  Rowley → Gillingham Const Inc; 1997-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kevin L  Rowley → Can-Ada Crushing & Gravel Co; 1997-11-01 to 2003-11-18; source msha-controller-operator-history
- **operator_operates_mine:** Gillingham Construction  Inc → Gillingham Const Inc; 2003-11-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Larry  Gillingham → Gillingham Construction  Inc; 2003-11-19 to current/open; source msha-controller-operator-history