# Relationship history for MSHA mine 0103430

Current hierarchy: **Ann E  Mahaffey; William R  Mahaffey Jr → Limestone Creek Sand and Gravel LLC → Limestone Creek**

- 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:** Limestone Creek Sand and Gravel LLC → Limestone Creek; 2010-09-04 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ann E  Mahaffey et al → Limestone Creek; 2010-09-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ann E  Mahaffey et al → Limestone Creek Sand and Gravel LLC; 2010-09-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William R  Mahaffey Jr et al → Limestone Creek Sand and Gravel LLC; 2010-09-04 to current/open; source msha-controller-operator-history