# Relationship history for MSHA mine 3101864

Current hierarchy: **Jeffrey  Goodman → Grove Stone & Sand Company → I-40 Stockpile And Plant**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Jeffrey  Goodman et al → I-40 Stockpile And Plant; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Grove Stone & Sand Company → I-40 Stockpile And Plant; 1979-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeffrey  Goodman et al → Grove Stone & Sand Company; 1979-01-01 to current/open; source msha-controller-operator-history