# Relationship history for MSHA mine 3700001

Current hierarchy: **Frederick R  Conklin → Conklin Limestone Co Inc → Conklin Limestone Co 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:** Conklin Limestone Co Inc → Conklin Limestone Co Inc; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jesse B  Conklin  et al → Conklin Limestone Co Inc; 1950-01-01 to 2005-12-06; source msha-controller-operator-history
- **controller_controls_operator:** Jesse B  Conklin  et al → Conklin Limestone Co Inc; 1950-01-01 to 2005-12-06; source msha-controller-operator-history
- **controller_controls_mine:** Frederick R  Conklin → Conklin Limestone Co Inc; 2005-12-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Frederick R  Conklin → Conklin Limestone Co Inc; 2005-12-07 to current/open; source msha-controller-operator-history