# Relationship history for MSHA mine 3500023

Current hierarchy: **Jorgensen Doug & Mitch → Molalla Redi-Mix & Rock Products Inc → MOLALLA REDI-MIX & ROCK PROD.INC**

- 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:** Molalla Redi-Mix & Rock Products → MOLALLA REDI-MIX & ROCK PROD.INC; 1950-01-01 to 1993-12-05; source msha-controller-operator-history
- **controller_controls_mine:** Jorgensen Robert → MOLALLA REDI-MIX & ROCK PROD.INC; 1950-01-01 to 1993-12-05; source msha-controller-operator-history
- **controller_controls_operator:** Jorgensen Robert → Molalla Redi-Mix & Rock Products; 1950-01-01 to 1993-12-05; source msha-controller-operator-history
- **operator_operates_mine:** Molalla Redi-Mix & Rock Products → MOLALLA REDI-MIX & ROCK PROD.INC; 1993-12-06 to 1996-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Hamblen Joanne → MOLALLA REDI-MIX & ROCK PROD.INC; 1993-12-06 to 1996-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Hamblen Joanne → Molalla Redi-Mix & Rock Products; 1993-12-06 to 1996-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Molalla Redi-Mix & Rock Products Inc → MOLALLA REDI-MIX & ROCK PROD.INC; 1997-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jorgensen Doug & Mitch → MOLALLA REDI-MIX & ROCK PROD.INC; 1997-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jorgensen Doug & Mitch → Molalla Redi-Mix & Rock Products Inc; 1997-01-01 to current/open; source msha-controller-operator-history