# Relationship history for MSHA mine 2200494

Current hierarchy: **Sanders Rebecca → Sanders Sand & Gravel Company Inc → JAMES STREET**

- 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:** Lofton Richard O → JAMES STREET; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Hattiesburg Sand & Gravel Inc → JAMES STREET; 1979-01-01 to 1992-07-13; source msha-controller-operator-history
- **controller_controls_operator:** Lofton Richard O → Hattiesburg Sand & Gravel Inc; 1979-01-01 to 1992-07-13; source msha-controller-operator-history
- **operator_operates_mine:** Leaf River Sand & Gravel Inc → JAMES STREET; 1992-07-14 to 1994-07-31; source msha-controller-operator-history
- **controller_controls_mine:** Chauvin Richard A → JAMES STREET; 1992-07-14 to 1994-07-31; source msha-controller-operator-history
- **controller_controls_operator:** Chauvin Richard A → Leaf River Sand & Gravel Inc; 1992-07-14 to 1994-07-31; source msha-controller-operator-history
- **operator_operates_mine:** Sanders Sand & Gravel Company Inc → JAMES STREET; 1994-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Sanders Rebecca → JAMES STREET; 1994-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sanders Rebecca → Sanders Sand & Gravel Company Inc; 1994-08-01 to current/open; source msha-controller-operator-history