# Relationship history for MSHA mine 3610351

Current hierarchy: **Jeremy W Mackall; Denise J Mackall; William T Mackall → Shenango Limestone and Storage Company, LLC → Shenango 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:** Shenango Limestone and Storage Company, LLC → Shenango Mine; 2020-12-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jeremy W Mackall et al → Shenango Mine; 2020-12-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeremy W Mackall et al → Shenango Limestone and Storage Company, LLC; 2020-12-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William T Mackall et al → Shenango Limestone and Storage Company, LLC; 2020-12-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Denise J Mackall et al → Shenango Limestone and Storage Company, LLC; 2020-12-03 to current/open; source msha-controller-operator-history