# Relationship history for MSHA mine 2602248

Current hierarchy: **Pam  Moore; Paul  Moore → Paul Moore'S Sand & Gravel Inc → PAUL MOORE'S SAND & GRAVEL INC**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Paul Moore'S Sand & Gravel Inc → PAUL MOORE'S SAND & GRAVEL INC; 1994-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Paul  Moore et al → PAUL MOORE'S SAND & GRAVEL INC; 1994-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Paul  Moore et al → Paul Moore'S Sand & Gravel Inc; 1994-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pam  Moore et al → Paul Moore'S Sand & Gravel Inc; 1994-04-01 to current/open; source msha-controller-operator-history