# Relationship history for MSHA mine 0103073

Current hierarchy: **Clarence L Moss III; Jerry  Levin → Moss-Levin Joint Venture → Nauvoo 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Jerry  Levin et al → Nauvoo Mine; 1993-09-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Powell Greg → Nauvoo Mine; 1994-10-31 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** P B Coal Inc → Nauvoo Mine; 1996-04-01 to 1997-12-15; source msha-controller-operator-history
- **controller_controls_operator:** Powell Greg → P B Coal Inc; 1996-04-01 to 1997-12-15; source msha-controller-operator-history
- **operator_operates_mine:** Moss-Levin Joint Venture → Nauvoo Mine; 1997-12-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jerry  Levin et al → Moss-Levin Joint Venture; 1997-12-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Clarence L Moss III et al → Moss-Levin Joint Venture; 1997-12-16 to current/open; source msha-controller-operator-history