# Relationship history for MSHA mine 3605463

Current hierarchy: **Kreig John & Henry Lutkowski → Kreig Construction Company → Sibley 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:** Martinelli Matthew → Sibley Bank; 1974-08-09 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** M Martinelli Co → Sibley Bank; 1975-02-18 to 1975-11-16; source msha-controller-operator-history
- **controller_controls_operator:** Martinelli Matthew → M Martinelli Co; 1975-02-18 to 1975-11-16; source msha-controller-operator-history
- **operator_operates_mine:** Kreig Construction Company → Sibley Bank; 1975-11-17 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kreig John & Henry Lutkowski → Sibley Bank; 1975-11-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kreig John & Henry Lutkowski → Kreig Construction Company; 1975-11-17 to current/open; source msha-controller-operator-history