# Relationship history for MSHA mine 0102553

Current hierarchy: **Heidt Dale A → Silloh Inc → Cherokee Mine**

- 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:** Vec → Cherokee Mine; 1983-07-01 to 1983-11-08; source msha-controller-operator-history
- **controller_controls_mine:** Heidt Dale A → Cherokee Mine; 1983-07-01 to 1983-11-08; source msha-controller-operator-history
- **controller_controls_operator:** Heidt Dale A → Vec; 1983-07-01 to 1983-11-08; source msha-controller-operator-history
- **operator_operates_mine:** Silloh Inc → Cherokee Mine; 1983-11-09 to 1984-06-27; source msha-controller-operator-history
- **controller_controls_mine:** Hollis Frank S → Cherokee Mine; 1983-11-09 to 1984-06-27; source msha-controller-operator-history
- **controller_controls_operator:** Hollis Frank S → Silloh Inc; 1983-11-09 to 1984-06-27; source msha-controller-operator-history
- **operator_operates_mine:** Silloh Inc → Cherokee Mine; 1984-06-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Heidt Dale A → Cherokee Mine; 1984-06-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Heidt Dale A → Silloh Inc; 1984-06-28 to current/open; source msha-controller-operator-history