# Relationship history for MSHA mine 1511993

Current hierarchy: **Donn A  Chickering → Branham & Baker Coal Company Inc → Chellis Coal**

- 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:** Donn A  Chickering → Chellis Coal; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Trinity Mining Corp Of Paintsville Inc → Chellis Coal; 1979-08-01 to 1980-03-26; source msha-controller-operator-history
- **controller_controls_mine:** George  Newsom → Chellis Coal; 1979-08-01 to 1980-03-26; source msha-controller-operator-history
- **controller_controls_operator:** George  Newsom → Trinity Mining Corp Of Paintsville Inc; 1979-08-01 to 1980-03-26; source msha-controller-operator-history
- **operator_operates_mine:** Trinity Mining Corp Of Paintsville Inc → Chellis Coal; 1980-03-27 to 1980-06-15; source msha-controller-operator-history
- **controller_controls_mine:** Carpenter Ronnie → Chellis Coal; 1980-03-27 to 1980-06-15; source msha-controller-operator-history
- **controller_controls_operator:** Carpenter Ronnie → Trinity Mining Corp Of Paintsville Inc; 1980-03-27 to 1980-06-15; source msha-controller-operator-history
- **operator_operates_mine:** Trinity Mining Corp Of Paintsville Inc → Chellis Coal; 1980-06-16 to 1981-07-06; source msha-controller-operator-history
- **controller_controls_mine:** Lucas James H → Chellis Coal; 1980-06-16 to 1981-07-06; source msha-controller-operator-history
- **controller_controls_operator:** Lucas James H → Trinity Mining Corp Of Paintsville Inc; 1980-06-16 to 1981-07-06; source msha-controller-operator-history
- **controller_controls_mine:** Ratliff Blake → Chellis Coal; 1980-06-23 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** R V & W Mining Inc → Chellis Coal; 1981-07-07 to 1981-11-12; source msha-controller-operator-history
- **controller_controls_operator:** Ratliff Blake → R V & W Mining Inc; 1981-07-07 to 1981-11-12; source msha-controller-operator-history
- **operator_operates_mine:** Chellis Coal Company Inc → Chellis Coal; 1981-11-13 to 1983-12-14; source msha-controller-operator-history
- **controller_controls_mine:** Larry  Phillips → Chellis Coal; 1981-11-13 to 1983-12-14; source msha-controller-operator-history
- **controller_controls_operator:** Larry  Phillips → Chellis Coal Company Inc; 1981-11-13 to 1983-12-14; source msha-controller-operator-history
- **operator_operates_mine:** Branham & Baker Coal Company Inc → Chellis Coal; 1983-12-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Donn A  Chickering → Branham & Baker Coal Company Inc; 1983-12-15 to current/open; source msha-controller-operator-history