# Relationship history for MSHA mine 1100096

Current hierarchy: **Donald J  Mueller → Consolidated Materials, Inc. → Consolidated 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:** Charles F Lee & Sons Inc → Consolidated Materials; 1950-01-01 to 2011-06-10; source msha-controller-operator-history
- **controller_controls_mine:** Marvin G  Lee → Consolidated Materials; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Marvin G  Lee → Charles F Lee & Sons Inc; 1950-01-01 to 2011-06-10; source msha-controller-operator-history
- **operator_operates_mine:** Lee Quarry Inc → Consolidated Materials; 2011-06-11 to 2014-11-30; source msha-controller-operator-history
- **controller_controls_mine:** Thomas A  Lee → Consolidated Materials; 2011-06-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Thomas A  Lee → Lee Quarry Inc; 2011-06-11 to 2014-11-30; source msha-controller-operator-history
- **controller_controls_mine:** Donald J  Mueller → Consolidated Materials; 2013-12-17 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Consolidated Materials, Inc. → Consolidated Materials; 2014-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Donald J  Mueller → Consolidated Materials, Inc.; 2014-12-01 to current/open; source msha-controller-operator-history