# Relationship history for MSHA mine 3304447

Current hierarchy: **John  Annichenni → City Stone LLC → City Stone 534 Quarry**

- 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:** Rt 534 Stone Products → City Stone 534 Quarry; 1999-11-01 to 2001-07-08; source msha-controller-operator-history
- **controller_controls_mine:** Jeremy K  Samson → City Stone 534 Quarry; 1999-11-01 to 2001-07-08; source msha-controller-operator-history
- **controller_controls_operator:** Jeremy K  Samson → Rt 534 Stone Products; 1999-11-01 to 2001-07-08; source msha-controller-operator-history
- **controller_controls_mine:** John  Annichenni et al → City Stone 534 Quarry; 2001-02-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Rt 534 Stone Products → City Stone 534 Quarry; 2001-07-09 to 2006-01-15; source msha-controller-operator-history
- **controller_controls_mine:** Carmen S  Cicero → City Stone 534 Quarry; 2001-07-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Carmen S  Cicero → Rt 534 Stone Products; 2001-07-09 to 2006-01-15; source msha-controller-operator-history
- **operator_operates_mine:** City Stone LLC → City Stone 534 Quarry; 2006-01-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John  Annichenni et al → City Stone LLC; 2006-01-16 to current/open; source msha-controller-operator-history