Franklin Wilson Rice (b. 1853, d. 1872) was the son of Henry Rice (Santa Cruz County's second judge after Judge Blackburn: https://sketchfab.com/models/601ad0a8c9f549b9b4930272e4a8d8ad) and Lucy Minerva Imus Rice.
F. W. Rice's sister, Charlotte, was the mother of Henry Thompson (https://sketchfab.com/models/d781ee9da7ba48deaf41afd81720b24f).
I was unable to find much information about Mr. Rice. The anchor on his stone suggests that he was a sailor.