# Relationship history for MSHA mine 4608473

Current hierarchy: **Terry  Hovatter → Double H Mining Co., Inc. → Cabin Mine**

- 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:** Chandler Thomas N → Cabin Mine; 1989-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Blackwater Mining Inc → Cabin Mine; 1995-02-01 to 1998-02-28; source msha-controller-operator-history
- **controller_controls_operator:** Chandler Thomas N → Blackwater Mining Inc; 1995-02-01 to 1998-02-28; source msha-controller-operator-history
- **controller_controls_mine:** Terry  Hovatter → Cabin Mine; 1996-03-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Difficult Mining Inc → Cabin Mine; 1998-03-01 to 2002-04-16; source msha-controller-operator-history
- **controller_controls_mine:** Courtland  Helbig → Cabin Mine; 1998-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Courtland  Helbig → Difficult Mining Inc; 1998-03-01 to 2002-04-16; source msha-controller-operator-history
- **controller_controls_mine:** Loyal G  Forman Jr → Cabin Mine; 2000-12-15 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** GMS Mine Repair & Maintenance, Inc. → Cabin Mine; 2002-04-17 to 2002-08-15; source msha-controller-operator-history
- **controller_controls_operator:** Courtland  Helbig → GMS Mine Repair & Maintenance, Inc.; 2002-04-17 to 2002-08-15; source msha-controller-operator-history
- **operator_operates_mine:** Loyal Forman and Son Inc. → Cabin Mine; 2002-08-16 to 2003-03-11; source msha-controller-operator-history
- **controller_controls_operator:** Loyal G  Forman Jr → Loyal Forman and Son Inc.; 2002-08-16 to 2003-03-11; source msha-controller-operator-history
- **operator_operates_mine:** Double H Mining Co., Inc. → Cabin Mine; 2003-03-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Terry  Hovatter → Double H Mining Co., Inc.; 2003-03-12 to current/open; source msha-controller-operator-history