It appears you may already have your questions answered.However, if you are interested, there is an online book company that does reprints of some books.They do have a reprint of "The History of Preble County, Ohio" published by H. Z. Williams brothers, 1881.Their web address is: http://www.higginsonbooks.comhttp://www.higginsonbooks.com I purchased it about three years ago.I do not remember what I paid for it but I am glad that I found it. Family Tree Maker also has a CD #450."County and family histories: Ohio, 1780 - 1970."The same book is on the CD. They include other county histories as well.
Hope this helps some and good luck on your search.