# Relationship history for MSHA mine 1516153

Current hierarchy: **Daniels Walter B → Tos-Aoh Mining Inc → No 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:** Burke Richard → No 1; 1987-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Daniels Walter B Et Al → No 1; 1987-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** L & J Resources Inc → No 1; 1987-08-01 to 1989-01-31; source msha-controller-operator-history
- **controller_controls_operator:** Burke Richard → L & J Resources Inc; 1987-08-01 to 1989-01-31; source msha-controller-operator-history
- **operator_operates_mine:** Tos-Aoh Mining Inc → No 1; 1989-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Daniels Walter B Et Al → Tos-Aoh Mining Inc; 1989-02-01 to current/open; source msha-controller-operator-history