# Relationship history for MSHA mine 2700496

Current hierarchy: **Angela P Osgood; Todd D Osgood → Todd Osgood Construction LLC → Pegson Crusher**

- 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

- **operator_operates_mine:** Todd Osgood Construction LLC → Pegson Crusher; 2015-12-07 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Todd D Osgood et al → Pegson Crusher; 2015-12-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Todd D Osgood et al → Todd Osgood Construction LLC; 2015-12-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Angela P Osgood et al → Todd Osgood Construction LLC; 2015-12-07 to current/open; source msha-controller-operator-history