On Twardoch's MSN Groups Font Family Naming in FontLab the family grouping only covers the 'Short Family' and 'Short Style' from Light through Bold and Condensed.

I'm curious what the Short Family and Short Style would be for a 'Black' or 'UltraLight' or 'Thin'?

Being that

My Garamond | Light becomes My Garamond Lt | Regular

and

My Garamond | Bold becomes My Garamond Rg | Bold

is it assumed that

My Garamond | Thin would become My Garamond Th | Regular

and

My Garamond | Black would become My Garamond Rg | Black

Is there any documents that show the breakdown of all font style possibilities between Long and Short families as well as Long and Short styles?

Thanks