# Relationship history for MSHA mine 0300049

Current hierarchy: **Cory  Hamilton; Cebran  Hamilton; Lyndall  Hamilton; Paula  Forbis → Rainbow Stone Company Inc → Lamar Quarry-Rainbow Stone**

- 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

- **operator_operates_mine:** Rainbow Stone Company → Lamar Quarry-Rainbow Stone; 1950-01-01 to 2011-09-13; source msha-controller-operator-history
- **controller_controls_mine:** Carroll  Hamilton  et al → Lamar Quarry-Rainbow Stone; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Carroll  Hamilton  et al → Rainbow Stone Company; 1950-01-01 to 2011-09-13; source msha-controller-operator-history
- **controller_controls_operator:** Charles E  Hamilton  et al → Rainbow Stone Company; 1950-01-01 to 2011-09-13; source msha-controller-operator-history
- **operator_operates_mine:** Rainbow Stone Company Inc → Lamar Quarry-Rainbow Stone; 2011-09-14 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Cory  Hamilton et al → Lamar Quarry-Rainbow Stone; 2011-09-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cory  Hamilton et al → Rainbow Stone Company Inc; 2011-09-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cebran  Hamilton et al → Rainbow Stone Company Inc; 2011-09-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Paula  Forbis et al → Rainbow Stone Company Inc; 2011-09-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lyndall  Hamilton et al → Rainbow Stone Company Inc; 2011-09-14 to current/open; source msha-controller-operator-history