# Relationship history for MSHA mine 1401815

Current hierarchy: **Craig  Jeschke → Kansas Limestone Company → Glenn 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:** Kansas Limestone Company → Glenn Mine; 2020-06-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Craig  Jeschke → Glenn Mine; 2020-06-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Craig  Jeschke → Kansas Limestone Company; 2020-06-10 to current/open; source msha-controller-operator-history