# Relationship history for MSHA mine 1519679

Current hierarchy: **Richard E  Noble → Noble Construction → Army Trail #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

- **controller_controls_mine:** Richard E  Noble → Army Trail #1; 2001-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Amy C  Hamilton → Army Trail #1; 2008-08-16 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** T & T Energy, LLC → Army Trail #1; 2012-09-14 to 2013-05-14; source msha-controller-operator-history
- **controller_controls_operator:** Amy C  Hamilton → T & T Energy, LLC; 2012-09-14 to 2013-05-14; source msha-controller-operator-history
- **operator_operates_mine:** Noble Construction → Army Trail #1; 2013-05-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Richard E  Noble → Noble Construction; 2013-05-15 to current/open; source msha-controller-operator-history