The Friends' Library on Google Books
In a comment to a recent post, Friend Marshall Massey mentioned a 14-volume "Friends' Library" published by Orthodox Friends in the mid 1800's. Google books has now digitized all 14 volumes, and thanks to the services of Public Domain Reprints, you can order your own copies. I will update this page more volumes are available for printing.
Also, Marshall quoted from a book entitled "The Life and Travels of John Pemberton, a minister of the Gospel of Christ". Unfortunately, there doesn't seem to be a copy of that book, but the passage Marshall quoted is also available in Memorials Concerning Deceased Friends.
All of these are available for download as PDFs.