# Relationship history for MSHA mine 0404624

Current hierarchy: **Morse Charles → General Quarters Mining Inc → Atolia Giant #2**

- 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

- **operator_operates_mine:** General Quarters Inc → Atolia Giant #2; 1983-01-01 to 1983-12-18; source msha-controller-operator-history
- **controller_controls_mine:** Hamilton Douglass W → Atolia Giant #2; 1983-01-01 to 1983-12-18; source msha-controller-operator-history
- **controller_controls_operator:** Hamilton Douglass W → General Quarters Inc; 1983-01-01 to 1983-12-18; source msha-controller-operator-history
- **operator_operates_mine:** General Quarters Mining Inc → Atolia Giant #2; 1983-12-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Morse Charles → Atolia Giant #2; 1983-12-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Morse Charles → General Quarters Mining Inc; 1983-12-19 to current/open; source msha-controller-operator-history