My brother helped me upload the the text of my grandfather's book yesterday. I tried to have as light a touch as possible in "reconstituting" my grandfather's memoir. I weighed the importance of each word that I added and made sure to highlight and track each one. In the end I added only 1,310 words of the 40,751 word manuscript - about 3% percent.
I am going to explore this interesting business of finishing another person's memoir in a future essay.