# Relationship history for MSHA mine 1516615

Current hierarchy: **Donn A  Chickering → Branham & Baker Underground Corp → #17**

- 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:** Newsome Donald → #17; 1976-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Cook Don Jr → #17; 1987-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Scott  Kiscaden et al → #17; 1989-03-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Melanie Coal Company Inc → #17; 1989-05-01 to 1989-10-17; source msha-controller-operator-history
- **controller_controls_operator:** Newsome Donald → Melanie Coal Company Inc; 1989-05-01 to 1989-10-17; source msha-controller-operator-history
- **operator_operates_mine:** T & Bc Coal Mining Inc → #17; 1989-10-18 to 1994-11-22; source msha-controller-operator-history
- **controller_controls_operator:** Cook Don Jr → T & Bc Coal Mining Inc; 1989-10-18 to 1994-11-22; source msha-controller-operator-history
- **operator_operates_mine:** Reno Coal Inc → #17; 1994-11-23 to 1997-02-20; source msha-controller-operator-history
- **controller_controls_mine:** Eddie  Holbrooks → #17; 1994-11-23 to 1997-02-20; source msha-controller-operator-history
- **controller_controls_operator:** Eddie  Holbrooks → Reno Coal Inc; 1994-11-23 to 1997-02-20; source msha-controller-operator-history
- **operator_operates_mine:** Kiah Creek Mining Company → #17; 1997-02-21 to 1997-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Scott  Kiscaden et al → Kiah Creek Mining Company; 1997-02-21 to 1997-06-30; source msha-controller-operator-history
- **controller_controls_operator:** (Donald) Todd  Kiscaden et al → Kiah Creek Mining Company; 1997-02-21 to 1997-06-30; source msha-controller-operator-history
- **operator_operates_mine:** Branham & Baker Underground Corp → #17; 1997-07-01 to 1997-11-25; source msha-controller-operator-history
- **controller_controls_mine:** Donn A  Chickering → #17; 1997-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Donn A  Chickering → Branham & Baker Underground Corp; 1997-07-01 to 1997-11-25; source msha-controller-operator-history
- **operator_operates_mine:** Owl Mining Inc → #17; 1997-11-26 to 1999-03-08; source msha-controller-operator-history
- **controller_controls_mine:** Larry  Yonts → #17; 1997-11-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Larry  Yonts → Owl Mining Inc; 1997-11-26 to 1999-03-08; source msha-controller-operator-history
- **operator_operates_mine:** Branham & Baker Underground Corp → #17; 1999-03-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Donn A  Chickering → Branham & Baker Underground Corp; 1999-03-09 to current/open; source msha-controller-operator-history