# Relationship history for MSHA mine 3300136

Current hierarchy: **National Lime & Stone Co. → The National Lime and Stone Company → Warrensburg**

- 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:** Martin Marietta Materials Inc → Warrensburg; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** National Lime & Stone Co. → Warrensburg; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Owens Stone Company Inc → Warrensburg; 1950-01-01 to 1991-10-15; source msha-controller-operator-history
- **controller_controls_mine:** Kenneth F Manning → Warrensburg; 1950-01-01 to 1991-10-15; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth F Manning → Owens Stone Company Inc; 1950-01-01 to 1991-10-15; source msha-controller-operator-history
- **controller_controls_mine:** CSR Ltd → Warrensburg; 1990-02-02 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** American Aggregates Corp → Warrensburg; 1991-10-16 to 1997-05-27; source msha-controller-operator-history
- **controller_controls_operator:** CSR Ltd → American Aggregates Corp; 1991-10-16 to 1997-05-27; source msha-controller-operator-history
- **operator_operates_mine:** Martin Marietta Aggregates → Warrensburg; 1997-05-28 to 2003-03-17; source msha-controller-operator-history
- **controller_controls_operator:** Martin Marietta Materials Inc → Martin Marietta Aggregates; 1997-05-28 to 2003-03-17; source msha-controller-operator-history
- **controller_controls_mine:** Thomas  Milligan → Warrensburg; 2001-02-22 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** The National Lime & Stone Company → Warrensburg; 2003-03-18 to 2003-04-28; source msha-controller-operator-history
- **controller_controls_operator:** National Lime & Stone Co. → The National Lime & Stone Company; 2003-03-18 to 2003-04-28; source msha-controller-operator-history
- **operator_operates_mine:** The Hill Stone Co. → Warrensburg; 2003-04-29 to 2005-06-21; source msha-controller-operator-history
- **controller_controls_mine:** Cliff L  Hill → Warrensburg; 2003-04-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cliff L  Hill → The Hill Stone Co.; 2003-04-29 to 2005-06-21; source msha-controller-operator-history
- **operator_operates_mine:** Western Ohio Cut Stone LLC → Warrensburg; 2005-06-22 to 2007-03-29; source msha-controller-operator-history
- **controller_controls_operator:** Thomas  Milligan → Western Ohio Cut Stone LLC; 2005-06-22 to 2007-03-29; source msha-controller-operator-history
- **controller_controls_mine:** National Lime & Stone Co. → Warrensburg; 2006-06-05 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Cascades Cut Stone Company → Warrensburg; 2007-03-30 to 2023-11-28; source msha-controller-operator-history
- **controller_controls_operator:** National Lime & Stone Co. → Cascades Cut Stone Company; 2007-03-30 to 2023-11-28; source msha-controller-operator-history
- **operator_operates_mine:** The National Lime and Stone Company → Warrensburg; 2023-11-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** National Lime & Stone Co. → The National Lime and Stone Company; 2023-11-29 to current/open; source msha-controller-operator-history