# Relationship history for MSHA mine 1519612

Current hierarchy: **Jefferson A  Bootes; Peyton N  Jackson; James J  Cahill → BER Coal LLC → House Branch Surface Mine #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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** BER Coal LLC → House Branch Surface Mine #1; 2011-03-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ruby  Hibbard et al → House Branch Surface Mine #1; 2011-03-23 to 2013-04-29; source msha-controller-operator-history
- **controller_controls_operator:** Ruby  Hibbard et al → BER Coal LLC; 2011-03-23 to 2013-04-29; source msha-controller-operator-history
- **controller_controls_operator:** Elmer  Perkins et al → BER Coal LLC; 2011-03-23 to 2013-04-29; source msha-controller-operator-history
- **controller_controls_mine:** James J  Cahill et al → House Branch Surface Mine #1; 2013-04-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James J  Cahill et al → BER Coal LLC; 2013-04-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Peyton N  Jackson et al → BER Coal LLC; 2013-04-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jefferson A  Bootes et al → BER Coal LLC; 2013-04-30 to current/open; source msha-controller-operator-history