J. Buchanan

J. Buchanan likely refers to John Buchan (1875–1940), a Scottish novelist, historian, and statesman best known for his adventure novel The Thirty-Nine Steps. He wrote over 100 books while serving as a publisher, politician, MP, and Director of Information during World War I[1][4][5].

Perth, Perthshire, Scotland Aug 26, 1875 Wikipedia
Adventure Historical fiction Thriller