# Relationship history for MSHA mine 3401487

Current hierarchy: **Randy  Jennings → Fittstone Inc → Fittstone**

- 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:** Jennings Stone Company Inc → Fittstone; 1985-04-01 to 2002-06-02; source msha-controller-operator-history
- **controller_controls_mine:** Randy  Jennings et al → Fittstone; 1985-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Randy  Jennings et al → Jennings Stone Company Inc; 1985-04-01 to 2002-06-02; source msha-controller-operator-history
- **operator_operates_mine:** Fittstone Inc → Fittstone; 2002-06-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ralph  Weaver et al → Fittstone; 2002-06-03 to 2006-02-08; source msha-controller-operator-history
- **controller_controls_operator:** Ralph  Weaver et al → Fittstone Inc; 2002-06-03 to 2006-02-08; source msha-controller-operator-history
- **controller_controls_operator:** Calvin  Ray  et al → Fittstone Inc; 2002-06-03 to 2006-02-08; source msha-controller-operator-history
- **controller_controls_mine:** Randy  Jennings et al → Fittstone; 2006-02-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Randy  Jennings et al → Fittstone Inc; 2006-02-09 to current/open; source msha-controller-operator-history