If you have not already done so, if you enter John's burial information into
http://www.sfgenealogy.com/php/cemetery/cemeteryindex.phpBurial location: Sec B, Row 18, Area 39
several Doherty results will show up: Bridget, Edw, Frances A, John, John F, John J, and Patrick J.
There are also the following last names: Cameron, Swett and Wood with the same section, row and area number.
My husband's ancestor is buried in the same section that John Doherty is buried. If I only type in the ancestor's section, row and area numbers (not including his grave number), there are about 20 results. My husband's ancestor is buried with his wife. The rest of the results are those buried in neighbouring graves. Using this theory, the Dohertys shown in the above referenced site should be buried in a neighbouring grave of (if not right next to) John Doherty.
It would have been helpful to have a Grave Number, as that might tell you if anyone is buried in the same plot.
Found on a newspaper website, is the death of Patrick J. Doherty, son of John and the late Bridget Doherty.
http://www.rootschat.com/links/0vhm/ In addition to the Doherty's mentioned previously, Jennie Swett, daughter of John Doherty, died May 25, 1908. Also mentioned: "...sister of James Doherty, Mrs. F. Wood and the late Patrick Doherty."