# Relationship history for MSHA mine 4607095

Current hierarchy: **Craddock Robert L & Robert P → Craddock & Son Coal Company Inc → #1 Strip**

- 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:** Craddock Robert L & Robert P → #1 Strip; 1974-10-10 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Tri-County Mining Inc → #1 Strip; 1986-04-01 to 1986-05-29; source msha-controller-operator-history
- **controller_controls_mine:** Meredith Chester → #1 Strip; 1986-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Meredith Chester → Tri-County Mining Inc; 1986-04-01 to 1986-05-29; source msha-controller-operator-history
- **operator_operates_mine:** Craddock & Son Coal Company Inc → #1 Strip; 1986-05-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Craddock Robert L & Robert P → Craddock & Son Coal Company Inc; 1986-05-30 to current/open; source msha-controller-operator-history