# Relationship history for MSHA mine 3002668

Current hierarchy: **Harold  Lyons → Harold Lyons & Sons Inc → RT. 9 BANK**

- 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:** Harold  Lyons et al → RT. 9 BANK; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Harold Lyons & Sons Inc → RT. 9 BANK; 1984-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Harold  Lyons et al → Harold Lyons & Sons Inc; 1984-12-01 to current/open; source msha-controller-operator-history