Hi again Evelyn, sorry to hear that. As I noted, I once had the same problem, so I can suggest a couple of things you might try. I see that this book is listed in the Library of Congress card catalog, so it does exist:
If it isn't convenient for you to travel to the Library of Congress, try checking with some other libraries in the area where the author lived and did most of her research. Authors often donate a few copies of their genealogy works to the genealogy rooms in the area where most of the family resided. If you can identify a library somewhere that has it, you can either go there or can sometimes get your own local library to set up an inter-library loan, or at least find somebody to do lookups..
In my case, I had had a couple of e-mail exchanges with another family member who was actually related to the author, and he was able to come up with an e-mail address. By that time the author was deceased, but I wrote to his widow, and after a little back and forth discussion, she graciously sent me an electronic copy, not of the original publication, but of an updated manuscript that the author was working on at the time of his death. It had even more data than the original publication, so I really lucked out. Perhaps if you can find some contacts within the author's family, or among descendants, they would be able to help you.
I'd also suggest that you re-post your original question in G2G, since most readers are not likely to see these comments from an older post. Good luck!