# Relationship history for MSHA mine 0100125

Current hierarchy: **Araneta Francisco → Watkins Brick & Tile Corp → Watkins Brick & Tile Corp Mine #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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Watkins Brick Company Inc → Watkins Brick & Tile Corp Mine #1; 1950-01-01 to 1985-04-11; source msha-controller-operator-history
- **controller_controls_mine:** Watkins Arthur Jr → Watkins Brick & Tile Corp Mine #1; 1950-01-01 to 1985-04-11; source msha-controller-operator-history
- **controller_controls_operator:** Watkins Arthur Jr → Watkins Brick Company Inc; 1950-01-01 to 1985-04-11; source msha-controller-operator-history
- **operator_operates_mine:** Ensley Brick Company Inc → Watkins Brick & Tile Corp Mine #1; 1985-04-12 to 1986-04-30; source msha-controller-operator-history
- **controller_controls_mine:** Widjanarko Herburt O → Watkins Brick & Tile Corp Mine #1; 1985-04-12 to 1986-04-30; source msha-controller-operator-history
- **controller_controls_operator:** Widjanarko Herburt O → Ensley Brick Company Inc; 1985-04-12 to 1986-04-30; source msha-controller-operator-history
- **operator_operates_mine:** Watkins Brick & Tile Corp → Watkins Brick & Tile Corp Mine #1; 1986-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Araneta Francisco → Watkins Brick & Tile Corp Mine #1; 1986-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Araneta Francisco → Watkins Brick & Tile Corp; 1986-05-01 to current/open; source msha-controller-operator-history