# Relationship history for MSHA mine 3609135

Current hierarchy: **William M  Ruark → Meshoppen Stone, Inc. → Liberty 1**

- 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:** William M  Ruark → Liberty 1; 1987-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Neway Homes (Partnership) → Liberty 1; 2003-04-07 to 2015-03-15; source msha-controller-operator-history
- **controller_controls_mine:** Jeffrey  Haberle et al → Liberty 1; 2003-04-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeffrey  Haberle et al → Neway Homes (Partnership); 2003-04-07 to 2015-03-15; source msha-controller-operator-history
- **operator_operates_mine:** Meshoppen Stone, Inc. → Liberty 1; 2015-03-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William M  Ruark → Meshoppen Stone, Inc.; 2015-03-16 to current/open; source msha-controller-operator-history