# Relationship history for MSHA mine 1002311

Current hierarchy: **Bradlee C  Draper; Vicki A  Draper → Clark M Draper Construction, Inc. → Clark Draper Crusher #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

- **operator_operates_mine:** Clark M Draper Construction, Inc. → Clark Draper Crusher #1; 2019-07-24 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Vicki A  Draper et al → Clark Draper Crusher #1; 2019-07-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Vicki A  Draper et al → Clark M Draper Construction, Inc.; 2019-07-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bradlee C  Draper et al → Clark M Draper Construction, Inc.; 2019-07-24 to current/open; source msha-controller-operator-history