Benjamin Franklin (post 6): Could forensic graphology tell if his Silence Dogood pseudonym was an alternate personality?

I presume that Franklin’s Silence Dogood manuscripts were handwritten (1). Do the originals still exist? If so, could a forensic graphologist tell whether the handwriting were simply faked by Franklin or were written by his alternate personality? I’m not sure, but it might be possible (2).

1. Wikipedia. “Silence DoGood.” https://en.wikipedia.org/wiki/Silence_Dogood

2. Eli Somer, Ron Yishai. "Handwriting Examination: Can it help in establishing authenticity in dissociative identity disorder?" Dissociation, Vol. X, No. 2, June 1997, pp. 114-119. https://scholarsbank.uoregon.edu/xmlui/handle/1794/1826

http://www.somer.co.il/articles/1997Handwriting.DID.Disoc.pdf