SORRY, I was WRONG about the number of pages in the index, but it still is a massive index. There are not 1781pages in the book.; that is how many there is is the three volumes.Theses are new to me and I just opened up the third one without checking any of the others.
The index is the third volume and ends on p 1781, but it starts on p1417
There are two columns of names, and 80 to a column on a regular page, except for the first and last pages--first page there are only 74 names in each colum, and the last page has only 19 people in each column. So there are a little over 68100 people in the index if I have done my math correctly.