[Macpartners] help locating mac mail - previous recipients list?

[Aran M. Parillo]

Hello,

I'm helping someone restore their mac mail from a rescued disc.  I 
think mail "stuff" is located in ~/library/mail/ but am wondering 
where the previous recipients list is contained?

Also has anyone ever just 'catted' such files together?  I suppose 
once I can get a look at the file I'll know more but thought I'd ask 
now as well.   What I mean is, I'd like to add the previous 
recipients list of the rescued disc to the one which has already been 
started on the new machine.

Thanks in advance for any info!

-amp