I found a book or books volumes 1-4 that have an index with family surnames to the page the surname can be located. These books can be viewed online for free. I found some ancestors of my own in the books.
The name of the book is, "Genealogical and Family History of the State of Maine", Volumes 1-4, by Burrag and Stubbs.
You have to look through all four volumes to find the surname. They do list which page the surname is located. There are over a 1,000 pages to the whole book, or books.
Just do a Google Search and enter the name of the book. Might take a little time to research it.
The Maine State Library also has Ebooks available too, I'm looking into that too.
Researching Maine Ancestors: Day, Lambert, Edgecomb