# Relationship history for MSHA mine 3605127

Current hierarchy: **Kearns William S → Apollo Corp → Elders Ridge**

- 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

- **controller_controls_mine:** Kearns William S → Elders Ridge; 1974-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Monroe Contract Corp → Elders Ridge; 1974-06-01 to 1977-09-29; source msha-controller-operator-history
- **controller_controls_mine:** Indyke Evelyn → Elders Ridge; 1974-06-01 to 1980-04-01; source msha-controller-operator-history
- **controller_controls_operator:** Indyke Evelyn → Monroe Contract Corp; 1974-06-01 to 1977-09-29; source msha-controller-operator-history
- **operator_operates_mine:** Apollo Corp → Elders Ridge; 1977-09-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kearns William S → Apollo Corp; 1977-09-30 to current/open; source msha-controller-operator-history