# Relationship history for MSHA mine 4406458

Current hierarchy: **Vandyke Leon & James Messer → River Bend Mining Inc → Mine No 3**

- 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:** Deel Thomas G & Bill → Mine No 3; 1986-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Vandyke Leon & James Messer → Mine No 3; 1987-06-02 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** T J B Mining Inc → Mine No 3; 1988-04-01 to 1990-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Deel Thomas G & Bill → T J B Mining Inc; 1988-04-01 to 1990-05-31; source msha-controller-operator-history
- **operator_operates_mine:** River Bend Mining Inc → Mine No 3; 1990-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Vandyke Leon & James Messer → River Bend Mining Inc; 1990-06-01 to current/open; source msha-controller-operator-history