# Relationship history for MSHA mine 3503315

Current hierarchy: **George I  Lewis; John P  Harris → Southfork Ready Mix → Lewiston Highway 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Southfork Ready Mix → Lewiston Highway Mine; 1988-08-01 to 2013-11-25; source msha-controller-operator-history
- **controller_controls_mine:** Terry E  Jones Et Al → Lewiston Highway Mine; 1988-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Terry E  Jones Et Al → Southfork Ready Mix; 1988-08-01 to 2013-11-25; source msha-controller-operator-history
- **controller_controls_operator:** Larry  Jones Et Al → Southfork Ready Mix; 1988-08-01 to 2013-11-25; source msha-controller-operator-history
- **operator_operates_mine:** Southfork Ready Mix → Lewiston Highway Mine; 2013-11-26 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** George I  Lewis et al → Lewiston Highway Mine; 2013-11-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** George I  Lewis et al → Southfork Ready Mix; 2013-11-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John P  Harris et al → Southfork Ready Mix; 2013-11-26 to current/open; source msha-controller-operator-history