# Relationship history for MSHA mine 2800950

Current hierarchy: **William  Clayton → Clayton Sand Company → Woodmansie-Hanson**

- 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  Clayton  et al → Woodmansie-Hanson; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Robert C  Narozanick → Woodmansie-Hanson; 1978-12-01 to 1984-05-31; source msha-controller-operator-history
- **operator_operates_mine:** Burlington Aggregates Inc → Woodmansie-Hanson; 1979-01-01 to 1984-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Robert C  Narozanick → Burlington Aggregates Inc; 1979-01-01 to 1984-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Robert  Hess → Woodmansie-Hanson; 1982-12-15 to 1995-05-03; source msha-controller-operator-history
- **operator_operates_mine:** Devault Crushed Stone Company Inc → Woodmansie-Hanson; 1984-06-01 to 1991-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Robert  Hess → Devault Crushed Stone Company Inc; 1984-06-01 to 1991-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Hanson PLC → Woodmansie-Hanson; 1988-11-14 to 2007-08-22; source msha-controller-operator-history
- **operator_operates_mine:** Shore Stone Company Inc → Woodmansie-Hanson; 1992-01-01 to 2003-07-18; source msha-controller-operator-history
- **controller_controls_mine:** Arlene E  Kraus → Woodmansie-Hanson; 1992-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Arlene E  Kraus → Shore Stone Company Inc; 1992-01-01 to 2003-07-18; source msha-controller-operator-history
- **controller_controls_mine:** USS Holdings Inc → Woodmansie-Hanson; 1996-03-09 to 2003-07-18; source msha-controller-operator-history
- **operator_operates_mine:** Hanson Aggregates BMC, Inc → Woodmansie-Hanson; 2003-07-19 to 2022-04-28; source msha-controller-operator-history
- **controller_controls_mine:** Hanson PLC → Woodmansie-Hanson; 2003-07-19 to 2007-08-22; source msha-controller-operator-history
- **controller_controls_operator:** Hanson PLC → Hanson Aggregates BMC, Inc; 2003-07-19 to 2007-08-22; source msha-controller-operator-history
- **controller_controls_operator:** USS Holdings Inc → Hanson Aggregates BMC, Inc; 2003-07-19 to 2003-07-18; source msha-controller-operator-history
- **controller_controls_mine:** Heidelberg Materials AG → Woodmansie-Hanson; 2007-08-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Heidelberg Materials AG → Hanson Aggregates BMC, Inc; 2007-08-23 to 2022-04-28; source msha-controller-operator-history
- **operator_operates_mine:** Hanson Aggregates Pennsylvania LLC → Woodmansie-Hanson; 2022-04-29 to 2022-08-31; source msha-controller-operator-history
- **controller_controls_operator:** Heidelberg Materials AG → Hanson Aggregates Pennsylvania LLC; 2022-04-29 to 2022-08-31; source msha-controller-operator-history
- **controller_controls_operator:** Hanson PLC → Hanson Aggregates Pennsylvania LLC; 2022-04-29 to 2007-08-22; source msha-controller-operator-history
- **operator_operates_mine:** Clayton Sand Company → Woodmansie-Hanson; 2022-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William  Clayton  et al → Clayton Sand Company; 2022-09-01 to current/open; source msha-controller-operator-history