# Relationship history for MSHA mine 1001824

Current hierarchy: **Lotridge Fred → Boise Paving & Asphalt Company → PORTABLE PLANT #1**

- 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:** Gillette Gary L → PORTABLE PLANT #1; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Boise Paving & Asphalt Company → PORTABLE PLANT #1; 1988-05-01 to 1994-06-22; source msha-controller-operator-history
- **controller_controls_operator:** Gillette Gary L → Boise Paving & Asphalt Company; 1988-05-01 to 1994-06-22; source msha-controller-operator-history
- **controller_controls_mine:** Lotridge Fred → PORTABLE PLANT #1; 1994-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Boise Paving & Asphalt Company → PORTABLE PLANT #1; 1994-06-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lotridge Fred → Boise Paving & Asphalt Company; 1994-06-23 to current/open; source msha-controller-operator-history