# Relationship history for MSHA mine 2601882

Current hierarchy: **Douglas  Eaton; David  Kelsch → GGL Resources Corp. → Great Western**

- 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:** Lawrence T  Atkinson → Great Western; 1982-01-06 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Western Mine Services → Great Western; 1984-04-01 to 2021-02-09; source msha-controller-operator-history
- **controller_controls_operator:** Lawrence T  Atkinson → Western Mine Services; 1984-04-01 to 2021-02-09; source msha-controller-operator-history
- **operator_operates_mine:** GGL Resources Corp. → Great Western; 2021-02-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** David  Kelsch et al → Great Western; 2021-02-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David  Kelsch et al → GGL Resources Corp.; 2021-02-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Douglas  Eaton et al → GGL Resources Corp.; 2021-02-10 to current/open; source msha-controller-operator-history