My iPhoto crashes at startup and seems to be Face Recog issue

Question

The error message is pages long but here is the beginning part.   I know it crashed when the Faces is having the circling/clocking sign.  Any advise to fix this is appreciated. 
Process:         iPhoto [607]
Path:            /Applications/iPhoto.app/Contents/MacOS/iPhoto
Identifier:      com.apple.iPhoto
Version:         9.4.3 (9.4.3)
Build Info:      iPhotoProject-720091000000000~1
App Item ID:     408981381
App External ID: 15017489
Code Type:       X86 (Native)
Parent Process:  launchd [140]
User ID:         501
Date/Time:       2013-06-30 09:54:55.547 -0700
OS Version:      Mac OS X 10.8.4 (12E55)
Report Version:  10
Interval Since Last Report:          2330 sec
Crashes Since Last Report:           4
Per-App Interval Since Last Report:  393 sec
Per-App Crashes Since Last Report:   4
Anonymous UUID:                      7F5BC9B8-AC40-1091-1C4D-1E0AC1025E4B
Crashed Thread:  10  Dispatch queue: Face Detection
Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x00000000ffffffff
VM Regions Near 0xffffffff:
--> shared memory          00000000ffff4000-00000000ffff5000 [    4K] r-x/r-x SM=SHM 

Answer 1

Back to the damaged Library.
Option 1
Back Up and try rebuild the library: hold down the command and option (or alt) keys while launching iPhoto. Use the resulting dialogue to rebuild. Choose to Repair Database. If that doesn't help, then try again, this time using Rebuild Database.
If that fails:
Option 2
Download iPhoto Library Manager and use its rebuild function. (In early versions of Library Manager it's the File -> Rebuild command. In later versions it's under the Library menu.)
This will create an entirely new library. It will then copy (or try to) your photos and all the associated metadata and versions to this new Library, and arrange it as close as it can to what you had in the damaged Library. It does this based on information it finds in the iPhoto sharing mechanism - but that means that things not shared won't be there, so no slideshows, books or calendars, for instance - but it should get all your events, albums and keywords, faces and places back.
Because this process creates an entirely new library and leaves your old one untouched, it is non-destructive, and if you're not happy with the results you can simply return to your old one.  
Regards
TD