I recently purchased this Directory on CD. The family I was looking for was not in it, but it is still a good resource since it represents the time between the 10 year census information. The information is listed by streets only, and only for Youngstown, no other cities. If anyone would like me to look up an address and tell them who is listed for that address in 1915, feel free to write. So many others have helped me in my research, I'd like to pay back some of the favors. The CD is not searchable by name, only by address.
marilynhertenstein@cox.net