I let Peter know that I had the book, and Peter recommended I check in with the World-Leading Starrett Authority, Ray Betzner. Ray got back to me with some lovely information:
"I am quite confident that this book was inscribed by Starrett himself. The inscription and date lend a high level of authenticity.... As for Frank Rhode, there is a good candidate I think. There were many by that name in Chicago in the '60s. But I feel confident his full name was Franklin W. Rhode, who was a member of the Hounds of the Baskerville (sic), Starrett’s Chicago scion."
Ray also suggested I look into whether there was a Sherlockian meeting in Chicago on 17 November 1965... for example the Hounds of the Baskerville (sic),
But first, who was Franklin Rhode? The great news is that the Hounds of the Baskerville (sic) have a wonderful web site that includes biographies of members:
Franklin Williams Rhode was born January 5, 1910 in Chicago, IL. Rhodes was described as a “railroad man and a collector of old English glossaries” in the June 1967 issue of The Baker Street Journal. He was active with Hugo’s Companions, participating in their Silver Blaze horseraces, and served as their Sergeant-at-arms. He contributed the article “My Old Friend Charlie Peace” to the June 1966 Baker Street Journal; “Palmer and Pritchard Were Among the Heads of Their Profession”, parts 1 and 2, to the June 1967 and March 1968 issues; and “Langdale Pike and Steve Dixie” to the March 1970 issue. He received the investiture of “My Old Friend Charlie Peace” from The Baker Street Irregulars in 1967. He moved to St. Louis in 1970. Rhode died on October 17, 1974 and is buried in St. Louis, MO. Biographical information provided courtesy of Julie McKuras.
A collection of Sherlockian pieces by Franklin Rhodes were published under the title Pike’s Peeks at the World of Sherlock Holmes (Battered Silicon Dispatch Box, 1988). The book includes a brief bibliography of Rhodes, and some delightful sketches:
Rhode lies in Bellefontaine Cemetery, St. Louis City, Missouri