# Relationship history for MSHA mine 4503813

Current hierarchy: **Daniel  Eller; Kathryn  Wilson; Michael  Eller → Eller Corporation → Eller Pit 1**

- 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:** Eller Corporation → Eller Pit 1; 2021-02-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kathryn  Wilson et al → Eller Pit 1; 2021-02-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kathryn  Wilson et al → Eller Corporation; 2021-02-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Daniel  Eller et al → Eller Corporation; 2021-02-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael  Eller et al → Eller Corporation; 2021-02-15 to current/open; source msha-controller-operator-history