# Relationship history for MSHA mine 1101056

Current hierarchy: **Owensby Jay W → Allsopp Sand & Gravel → Allsopp Sand & Gravel Incorporated**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Allsopp Sand & Gravel → Allsopp Sand & Gravel Incorporated; 1950-01-01 to 1986-06-11; source msha-controller-operator-history
- **controller_controls_mine:** Allsopp John → Allsopp Sand & Gravel Incorporated; 1950-01-01 to 1986-06-11; source msha-controller-operator-history
- **controller_controls_operator:** Allsopp John → Allsopp Sand & Gravel; 1950-01-01 to 1986-06-11; source msha-controller-operator-history
- **operator_operates_mine:** Allsopp Sand & Gravel → Allsopp Sand & Gravel Incorporated; 1986-06-12 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Owensby Jay W → Allsopp Sand & Gravel Incorporated; 1986-06-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Owensby Jay W → Allsopp Sand & Gravel; 1986-06-12 to current/open; source msha-controller-operator-history