# Contra Costa, California, United States

*United States / California*

city · US · 37.9035, -121.9175

## People
- [James Mulholland](/p/james-mulholland-588.md)
- [Ann Smith](/p/ann-smith-589.md)

## Events
- 1880 — **Residence**: [James Mulholland](/p/james-mulholland-588.md)
- 1880 — **Residence**: [Ann Smith](/p/ann-smith-589.md)