# Relationship history for MSHA mine 4801692

Current hierarchy: **J Mark  Noble; Susan G  Noble → Noble Construction Inc → Noble Crusher**

- 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:** Noble Construction Inc → Noble Crusher; 2006-03-07 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** J Mark  Noble  et al → Noble Crusher; 2006-03-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** J Mark  Noble  et al → Noble Construction Inc; 2006-03-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Susan G  Noble  et al → Noble Construction Inc; 2006-03-07 to current/open; source msha-controller-operator-history