# Relationship history for MSHA mine 1103194

Current hierarchy: **Clem H  Martin Jr; Gary A  Martin → Fox Excavating Inc → Fox Flagstone**

- 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

- **operator_operates_mine:** Fox Excavating Inc → Fox Flagstone; 2008-05-07 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Clem H  Martin Jr  et al → Fox Flagstone; 2008-05-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Clem H  Martin Jr  et al → Fox Excavating Inc; 2008-05-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gary A  Martin  et al → Fox Excavating Inc; 2008-05-07 to current/open; source msha-controller-operator-history