# Relationship history for MSHA mine 2501284

Current hierarchy: **Ryan R  Haddan; Gary R  Haddan → Haddan Lime Products LLC → Gladstone 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

- **controller_controls_mine:** Gary R  Haddan et al → Gladstone pit; 2010-09-14 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Haddan Lime Products LLC → Gladstone pit; 2012-08-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gary R  Haddan et al → Haddan Lime Products LLC; 2012-08-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ryan R  Haddan et al → Haddan Lime Products LLC; 2012-08-08 to current/open; source msha-controller-operator-history