# Relationship history for MSHA mine 2301986

Current hierarchy: **Barney  Esbeck; Robin  Esbeck → Gallatin Sand → GALLATIN SAND**

- 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:** Howard L  Miller → GALLATIN SAND; 1987-08-27 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Milburn Of St Joseph Inc → GALLATIN SAND; 1988-04-01 to 1995-05-16; source msha-controller-operator-history
- **controller_controls_operator:** Howard L  Miller → Milburn Of St Joseph Inc; 1988-04-01 to 1995-05-16; source msha-controller-operator-history
- **operator_operates_mine:** Gallatin Sand → GALLATIN SAND; 1995-05-17 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Robin  Esbeck  et al → GALLATIN SAND; 1995-05-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robin  Esbeck  et al → Gallatin Sand; 1995-05-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Barney  Esbeck  et al → Gallatin Sand; 1995-05-17 to current/open; source msha-controller-operator-history