Is it possible to recover JPEG images using a low level scan of a hard drive? The hard drive we originally formatted in HFS+ and has since been reformatted. OS X has also been reinstalled.
Given the size of disks these days there's a decent chance that the OS X install missed overwriting the blocks containing the image. You should try using one of the many "photo rescue" applications that search disks for JPEGs that were deleted in error. Some of these apps allow free trial usage and make you pay only if the app recovers anything.