# Relationship history for MSHA mine 1200964

Current hierarchy: **Fred (Pete)  Irving → imi Aggregates LLC. → imi New Albany Sand & Gravel**

- 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:** M & M Construction Service Inc → imi New Albany Sand & Gravel; 1950-01-01 to 1985-03-11; source msha-controller-operator-history
- **controller_controls_mine:** Ruby Construction Company Inc → imi New Albany Sand & Gravel; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ruby Construction Company Inc → M & M Construction Service Inc; 1950-01-01 to 1985-03-11; source msha-controller-operator-history
- **operator_operates_mine:** M & M Const. Materials, Inc. → imi New Albany Sand & Gravel; 1985-03-12 to 2024-09-02; source msha-controller-operator-history
- **controller_controls_mine:** Robert E  Geltmaker → imi New Albany Sand & Gravel; 1985-03-12 to 2019-10-11; source msha-controller-operator-history
- **controller_controls_operator:** Robert E  Geltmaker → M & M Const. Materials, Inc.; 1985-03-12 to 2019-10-11; source msha-controller-operator-history
- **controller_controls_mine:** Judy R  Geltmaker → imi New Albany Sand & Gravel; 2019-10-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Judy R  Geltmaker → M & M Const. Materials, Inc.; 2019-10-12 to 2024-09-02; source msha-controller-operator-history
- **controller_controls_mine:** Fred (Pete)  Irving → imi New Albany Sand & Gravel; 2020-09-08 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** imi Aggregates LLC. → imi New Albany Sand & Gravel; 2024-09-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Fred (Pete)  Irving → imi Aggregates LLC.; 2024-09-03 to current/open; source msha-controller-operator-history