# Relationship history for MSHA mine 3004126

Current hierarchy: **Jonathan  Palmer; Mark E Palmer → Lardon Construction Corp. → Will Rogers**

- 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:** Lardon Construction Corp. → Will Rogers; 2024-04-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jonathan  Palmer et al → Will Rogers; 2024-04-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jonathan  Palmer et al → Lardon Construction Corp.; 2024-04-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mark E Palmer et al → Lardon Construction Corp.; 2024-04-10 to current/open; source msha-controller-operator-history