# Relationship history for MSHA mine 0103084

Current hierarchy: **Frank  Foley → Foley Materials Company → City Pit**

- 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:** Frank  Foley → City Pit; 1978-03-09 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Montgomery Materials Company Inc → City Pit; 1996-09-01 to 2002-04-09; source msha-controller-operator-history
- **controller_controls_mine:** Harry E  Lambert → City Pit; 1996-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Harry E  Lambert → Montgomery Materials Company Inc; 1996-09-01 to 2002-04-09; source msha-controller-operator-history
- **operator_operates_mine:** Montgomery Materials → City Pit; 2002-04-10 to 2003-04-16; source msha-controller-operator-history
- **controller_controls_mine:** Frank  Foley → City Pit; 2002-04-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Frank  Foley → Montgomery Materials; 2002-04-10 to 2003-04-16; source msha-controller-operator-history
- **operator_operates_mine:** Concrete Company → City Pit; 2003-04-17 to 2005-09-27; source msha-controller-operator-history
- **controller_controls_operator:** Frank  Foley → Concrete Company; 2003-04-17 to 2005-09-27; source msha-controller-operator-history
- **operator_operates_mine:** Foley Materials Company → City Pit; 2005-09-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Frank  Foley → City Pit; 2005-09-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Frank  Foley → Foley Materials Company; 2005-09-28 to current/open; source msha-controller-operator-history