# Relationship history for MSHA mine 3401504

Current hierarchy: **Gary  Gillham → Gary Gillham → KELLY-GILLHAM QUARRIES**

- 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

- **controller_controls_mine:** Le Flore County - Ok → KELLY-GILLHAM QUARRIES; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Le Flore County → KELLY-GILLHAM QUARRIES; 1985-07-01 to 1995-10-31; source msha-controller-operator-history
- **controller_controls_operator:** Le Flore County - Ok → Le Flore County; 1985-07-01 to 1995-10-31; source msha-controller-operator-history
- **operator_operates_mine:** Gary Gillham → KELLY-GILLHAM QUARRIES; 1995-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Gary  Gillham → KELLY-GILLHAM QUARRIES; 1995-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gary  Gillham → Gary Gillham; 1995-11-01 to current/open; source msha-controller-operator-history