Yet another option, for rooms where plaster, etc. are not in A-1 shape:
strip the inside skin as possible,
redo wiring (1928? I'd rip it all out) as desired, plumbing, whatever
attach vapor barrier, and sheetrock.

Admittedly much more intense than just blowing in cellulose, but, as
far as I can see from here, something to be prepared for.

Insulation is not THE answer to interior climate control, either.
Sealing is very important, and you can often make big improvements very
inexpensively, while you plan/work on insulation. Which then makes
vapor barrier very desirable.

Check with GPO (Boulder)- http://bookstore.gpo.gov/. Lots of good
publications available there, from gummint research, etc.

HTH,
J