# Relationship history for MSHA mine 3610012

Current hierarchy: **Clyde Holding Inc → Neiswonger Construction Inc. → MAGGIE LYNN QUARRY**

- 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:** David C  Neiswonger et al → MAGGIE LYNN QUARRY; 2003-07-21 to 2020-04-24; source msha-controller-operator-history
- **operator_operates_mine:** Neiswonger Construction Inc. → MAGGIE LYNN QUARRY; 2012-07-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David C  Neiswonger et al → Neiswonger Construction Inc.; 2012-07-30 to 2020-04-24; source msha-controller-operator-history
- **controller_controls_mine:** Clyde Holding Inc → MAGGIE LYNN QUARRY; 2020-04-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Clyde Holding Inc → Neiswonger Construction Inc.; 2020-04-25 to current/open; source msha-controller-operator-history