# Relationship history for MSHA mine 0102823

Current hierarchy: **Robert A  Lewis; Thomas A  Lewis → Birmingham Coal & Coke Company Inc → Howard 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Mullins Dan → Howard Mine; 1980-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Thomas A  Lewis et al → Howard Mine; 1983-04-01 to 2012-11-04; source msha-controller-operator-history
- **operator_operates_mine:** Howard Land Company → Howard Mine; 1989-10-01 to 1990-06-06; source msha-controller-operator-history
- **controller_controls_mine:** Stovall Billy Gene-James Carmichael Et Al → Howard Mine; 1989-10-01 to 1990-06-06; source msha-controller-operator-history
- **controller_controls_operator:** Stovall Billy Gene-James Carmichael Et Al → Howard Land Company; 1989-10-01 to 1990-06-06; source msha-controller-operator-history
- **operator_operates_mine:** Burleson & Mullins Coal Company Inc → Howard Mine; 1990-06-07 to 1991-05-23; source msha-controller-operator-history
- **controller_controls_operator:** Mullins Dan → Burleson & Mullins Coal Company Inc; 1990-06-07 to 1991-05-23; source msha-controller-operator-history
- **operator_operates_mine:** Birmingham Coal & Coke Company Inc → Howard Mine; 1991-05-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Thomas A  Lewis et al → Birmingham Coal & Coke Company Inc; 1991-05-24 to 2012-11-04; source msha-controller-operator-history
- **controller_controls_operator:** Robert A  Lewis et al → Birmingham Coal & Coke Company Inc; 1991-05-24 to 2012-11-04; source msha-controller-operator-history
- **controller_controls_mine:** Radar USA Holding Corp → Howard Mine; 2012-11-05 to 2017-05-21; source msha-controller-operator-history
- **controller_controls_operator:** Radar USA Holding Corp → Birmingham Coal & Coke Company Inc; 2012-11-05 to 2017-05-21; source msha-controller-operator-history
- **controller_controls_mine:** Thomas A  Lewis et al → Howard Mine; 2017-05-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Thomas A  Lewis et al → Birmingham Coal & Coke Company Inc; 2017-05-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert A  Lewis et al → Birmingham Coal & Coke Company Inc; 2017-05-22 to current/open; source msha-controller-operator-history