# Relationship history for MSHA mine 1202280

Current hierarchy: **John  Steckling → Indiana Quarries & Carvers LLC → Indiana Quarries & Carvers South**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **controller_controls_mine:** T Dean  Barnes et al → Indiana Quarries & Carvers South; 1998-02-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Walton Quarry Inc → Indiana Quarries & Carvers South; 2000-06-01 to 2003-12-29; source msha-controller-operator-history
- **controller_controls_operator:** T Dean  Barnes et al → Walton Quarry Inc; 2000-06-01 to 2003-12-29; source msha-controller-operator-history
- **operator_operates_mine:** C & H Stone Co., Inc. → Indiana Quarries & Carvers South; 2003-12-30 to 2018-07-22; source msha-controller-operator-history
- **controller_controls_mine:** Jack L  Chaney  et al → Indiana Quarries & Carvers South; 2003-12-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jack L  Chaney  et al → C & H Stone Co., Inc.; 2003-12-30 to 2018-07-22; source msha-controller-operator-history
- **controller_controls_operator:** Lowell E  Helton  et al → C & H Stone Co., Inc.; 2003-12-30 to 2018-07-22; source msha-controller-operator-history
- **controller_controls_mine:** John  Steckling et al → Indiana Quarries & Carvers South; 2012-04-24 to 2026-02-17; source msha-controller-operator-history
- **operator_operates_mine:** Indiana Quarries & Carvers LLC → Indiana Quarries & Carvers South; 2018-07-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John  Steckling et al → Indiana Quarries & Carvers LLC; 2018-07-23 to 2026-02-17; source msha-controller-operator-history
- **controller_controls_operator:** Michael  Stigler et al → Indiana Quarries & Carvers LLC; 2018-07-23 to 2026-02-17; source msha-controller-operator-history
- **controller_controls_mine:** John  Steckling → Indiana Quarries & Carvers South; 2026-02-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John  Steckling → Indiana Quarries & Carvers LLC; 2026-02-18 to current/open; source msha-controller-operator-history