This is just interesting. I found it while researching the differences in crypts, vaults an such. I'd loved to have been a mortician. (I know, morbid, but it is also loving if you can understand that aspect). It's on Wikipedia under burial.
Secret burial
In rare cases, a known person may be buried without identification, perhaps to avoid desecration of the corpse, grave robbing, or vandalism of the burial site. This may be particularly the case with infamous or notorious figures. In other cases, it may be to prevent the grave from becoming a tourist attractions or a destination of pilgrimage. Survivors may cause the deceased to be buried in a secret location or other unpublished place, or in a grave with a false name (or no name at all) on the marker.
When Walt Disney was cremated his ashes were buried in a secret location in Forest Lawn Memorial Park Cemetery, California. Some burial sites at Forest Lawn, such as those of Humphrey Bogart, Mary Pickford and Michael Jackson are secluded in private gated gardens or mausoleums with no public access. A number of tombs are also kept from the public eye. Forest Lawn's Court of Honor indicates that some of its crypts have plots which are reserved for individuals who may be "voted in" as "Immortals"; no amount of money can purchase a place. Photographs taken at Forest Lawn are not permitted to be published, and their information office usually refuses to reveal exactly where the remains of famous people are buried. Although the cemetery's owners state that this is meant to deter gravesite tourism, some critics say that the cemetery wishes visitors to purchase memorabilia at the funeral home's numerous gift shops instead of taking photographs for free, especially in the case of grave markers notable for their beauty.[13]
I thought it interesting that FL has an area where people are voted in and money can't buy a place into and it's for "Immortals". Just thought it interesting is ALL.