# Relationship history for MSHA mine 0103190

Current hierarchy: **Alana  Johnson; Trenton Blaise Brown → Alabama Wholesale Stone, Inc. → AWS PIT #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

- **controller_controls_mine:** Phillip  Brown → AWS PIT #1; 1950-01-01 to 2022-12-09; source msha-controller-operator-history
- **operator_operates_mine:** Alabama Wholesale Stone, Inc. → AWS PIT #1; 2000-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Phillip  Brown → Alabama Wholesale Stone, Inc.; 2000-06-01 to 2022-12-09; source msha-controller-operator-history
- **controller_controls_mine:** Trenton Blaise Brown et al → AWS PIT #1; 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
- **controller_controls_operator:** Alana  Johnson et al → Alabama Wholesale Stone, Inc.; 2022-12-10 to current/open; source msha-controller-operator-history