Landmark information
- Location: 
 Across street from 4575 Pacheco Blvd, Martinez
- Plaque: 
 Official State Plaque
- Site: 
 Nothing Remains
- Date First Visited: 
 11/10/1995
- Date Most Recently Visited: 
 7/17/2015
- GPS Coordinates: 
 N 38 0.319, W 122 5.254
About this landmark
                Plaque text: 
				
				Dr. John Marsh
				
				California pioneer
				
				murdered here
				
				September 24, 1856
              
