# Relationship history for MSHA mine 3304694

Current hierarchy: **Larry L  Feikert; James A  Feikert → Feikert Sand & Gravel Inc. → Pegson XA 400 Jaw Crusher**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Lynn O  Feikert → Pegson XA 400 Jaw Crusher; 1950-01-01 to 2024-06-11; source msha-controller-operator-history
- **operator_operates_mine:** Feikert Sand & Gravel Inc. → Pegson XA 400 Jaw Crusher; 2013-03-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lynn O  Feikert → Feikert Sand & Gravel Inc.; 2013-03-29 to 2024-06-11; source msha-controller-operator-history
- **controller_controls_mine:** Larry L  Feikert et al → Pegson XA 400 Jaw Crusher; 2024-06-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Larry L  Feikert et al → Feikert Sand & Gravel Inc.; 2024-06-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James A  Feikert et al → Feikert Sand & Gravel Inc.; 2024-06-12 to current/open; source msha-controller-operator-history