# Relationship history for MSHA mine 4300370

Current hierarchy: **Edmund  Allard; Rena  Allard → Edmund & Rena Allard → ALLARD PIT**

- 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:** Edmund & Rena Allard → ALLARD PIT; 1983-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Edmund  Allard  et al → ALLARD PIT; 1983-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Edmund  Allard  et al → Edmund & Rena Allard; 1983-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rena  Allard  et al → Edmund & Rena Allard; 1983-11-01 to current/open; source msha-controller-operator-history