# Relationship history for MSHA mine 2402399

Current hierarchy: **Don D  DeTienne; Michael R  Franklin → Markle Mountain Stone → Markle Site #1**

- 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:** Markle Mountain Stone → Markle Site #1; 2005-04-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Michael R  Franklin et al → Markle Site #1; 2005-04-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael R  Franklin et al → Markle Mountain Stone; 2005-04-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Don D  DeTienne et al → Markle Mountain Stone; 2005-04-06 to current/open; source msha-controller-operator-history