# Relationship history for MSHA mine 3603456

Current hierarchy: **Dally Slate Company → Dally Slate Company → DALLY-MILL; STEPHN JACKSON-MILL**

- 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:** Stoddard Slate Companies Inc → DALLY-MILL; STEPHN JACKSON-MILL; 1950-01-01 to 1981-09-27; source msha-controller-operator-history
- **controller_controls_mine:** Stoddard Elwood → DALLY-MILL; STEPHN JACKSON-MILL; 1950-01-01 to 1981-09-27; source msha-controller-operator-history
- **controller_controls_operator:** Stoddard Elwood → Stoddard Slate Companies Inc; 1950-01-01 to 1981-09-27; source msha-controller-operator-history
- **operator_operates_mine:** Dally Slate Company → DALLY-MILL; STEPHN JACKSON-MILL; 1981-09-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Dally Slate Company → DALLY-MILL; STEPHN JACKSON-MILL; 1981-09-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dally Slate Company → Dally Slate Company; 1981-09-28 to current/open; source msha-controller-operator-history