# Relationship history for MSHA mine 0600240

Current hierarchy: **Michael  Maglieri → Manchester Materials Llc → MANCHESTER MATERIALS**

- 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

- **operator_operates_mine:** Msg Corp → MANCHESTER MATERIALS; 1950-01-01 to 2001-06-12; source msha-controller-operator-history
- **controller_controls_mine:** William B  Thornton → MANCHESTER MATERIALS; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William B  Thornton → Msg Corp; 1950-01-01 to 2001-06-12; source msha-controller-operator-history
- **operator_operates_mine:** Manchester Materials Llc → MANCHESTER MATERIALS; 2001-06-13 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Michael  Maglieri et al → MANCHESTER MATERIALS; 2001-06-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael  Maglieri et al → Manchester Materials Llc; 2001-06-13 to current/open; source msha-controller-operator-history