# Relationship history for MSHA mine 4103641

Current hierarchy: **James B  Pace Jr → Lamarr Trucking, Inc. → Lamarr Trucking, Inc.**

- 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:** Bittner Trucking & Sand Inc → Lamarr Trucking, Inc.; 1990-11-01 to 1997-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Elmer P  Bittner  et al → Lamarr Trucking, Inc.; 1990-11-01 to 1997-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Elmer P  Bittner  et al → Bittner Trucking & Sand Inc; 1990-11-01 to 1997-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Genoa Mining Inc → Lamarr Trucking, Inc.; 1998-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James B  Pace Jr → Lamarr Trucking, Inc.; 1998-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James B  Pace Jr → Genoa Mining Inc; 1998-01-01 to current/open; source msha-controller-operator-history