# Relationship history for MSHA mine 1517265

Current hierarchy: **Donn A  Chickering → Branham & Baker Underground Corp → Mine #18**

- 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:** Sloan Curtis & David Belcher → Mine #18; 1981-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kenneth  Rowe → Mine #18; 1987-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Bartley Marvin → Mine #18; 1992-03-31 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Old South Mining Corp → Mine #18; 1992-07-01 to 1993-03-03; source msha-controller-operator-history
- **controller_controls_operator:** Sloan Curtis & David Belcher → Old South Mining Corp; 1992-07-01 to 1993-03-03; source msha-controller-operator-history
- **operator_operates_mine:** Big Bass Fuels Inc → Mine #18; 1993-03-04 to 1994-03-08; source msha-controller-operator-history
- **controller_controls_operator:** Bartley Marvin → Big Bass Fuels Inc; 1993-03-04 to 1994-03-08; source msha-controller-operator-history
- **operator_operates_mine:** Levisa Coal Inc → Mine #18; 1994-03-09 to 1995-03-22; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth  Rowe → Levisa Coal Inc; 1994-03-09 to 1995-03-22; source msha-controller-operator-history
- **operator_operates_mine:** T & J Coal Company Inc → Mine #18; 1995-03-23 to 1996-10-08; source msha-controller-operator-history
- **controller_controls_mine:** Looney Johnny → Mine #18; 1995-03-23 to 1996-10-08; source msha-controller-operator-history
- **controller_controls_operator:** Looney Johnny → T & J Coal Company Inc; 1995-03-23 to 1996-10-08; source msha-controller-operator-history
- **operator_operates_mine:** Lost Creek Mining Inc → Mine #18; 1996-10-09 to 1997-09-22; source msha-controller-operator-history
- **controller_controls_mine:** Jody  Samons → Mine #18; 1996-10-09 to 1997-09-22; source msha-controller-operator-history
- **controller_controls_operator:** Jody  Samons → Lost Creek Mining Inc; 1996-10-09 to 1997-09-22; source msha-controller-operator-history
- **controller_controls_mine:** Donn A  Chickering → Mine #18; 1997-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Branham & Baker Underground Corp → Mine #18; 1997-09-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Donn A  Chickering → Branham & Baker Underground Corp; 1997-09-23 to current/open; source msha-controller-operator-history