# Relationship history for MSHA mine 4609304

Current hierarchy: **Jeffrey A  Goldizen → United Coals, Inc → Twin Bridges 2**

- 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:** Franklin R  Sutton et al → Twin Bridges 2; 1979-02-01 to 2007-04-04; source msha-controller-operator-history
- **controller_controls_mine:** Jimmie R  Ryan et al → Twin Bridges 2; 2005-08-29 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jeffrey A  Goldizen → Twin Bridges 2; 2007-04-05 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** United Coals, Inc. → Twin Bridges 2; 2008-09-19 to 2009-03-01; source msha-controller-operator-history
- **controller_controls_operator:** Jeffrey A  Goldizen → United Coals, Inc.; 2008-09-19 to 2009-03-01; source msha-controller-operator-history
- **controller_controls_operator:** Franklin R  Sutton et al → United Coals, Inc.; 2008-09-19 to 2007-04-04; source msha-controller-operator-history
- **controller_controls_operator:** (Charles) Ralph  Sutton et al → United Coals, Inc.; 2008-09-19 to 2007-04-04; source msha-controller-operator-history
- **operator_operates_mine:** Shelby Mining Company, LLC → Twin Bridges 2; 2009-03-02 to 2009-12-15; source msha-controller-operator-history
- **controller_controls_operator:** Jimmie R  Ryan et al → Shelby Mining Company, LLC; 2009-03-02 to 2009-12-15; source msha-controller-operator-history
- **operator_operates_mine:** United Coals, Inc → Twin Bridges 2; 2009-12-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeffrey A  Goldizen → United Coals, Inc; 2009-12-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Franklin R  Sutton et al → United Coals, Inc; 2009-12-16 to 2007-04-04; source msha-controller-operator-history
- **controller_controls_operator:** (Charles) Ralph  Sutton et al → United Coals, Inc; 2009-12-16 to 2007-04-04; source msha-controller-operator-history