# Relationship history for MSHA mine 0103134

Current hierarchy: **Alana  Johnson; Trenton Blaise Brown → Alabama Wholesale Stone Inc → BROWN QUARRY**

- 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:** Phillip  Brown → BROWN QUARRY; 1950-01-01 to 2022-12-09; source msha-controller-operator-history
- **operator_operates_mine:** Alabama Wholesale Stone Inc → BROWN QUARRY; 1998-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Phillip  Brown → Alabama Wholesale Stone Inc; 1998-10-01 to 2022-12-09; source msha-controller-operator-history
- **controller_controls_mine:** Alana  Johnson et al → BROWN QUARRY; 2022-12-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alana  Johnson et al → Alabama Wholesale Stone Inc; 2022-12-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Trenton Blaise Brown et al → Alabama Wholesale Stone Inc; 2022-12-10 to current/open; source msha-controller-operator-history