Previously, I posted a photo of popular Christian authors who enjoyed smoking. Here is an article that highlights more of such personalities (H/T: Sivin):
[Dietrich] Bonhoeffer often reinforces his gratitude with superlatives and exclamation points. "Maria's and Mother's cigarettes were magnificent," he writes. "I thank Anna very much for the cigarettes." And: "I thank you very much for everything, also for the cigars and cigarettes from your trip!" He praises a Wolf cigar for its "magical fragrance" and on another occasion declares, "I've lit the big cigar and am enjoying it immensely—thanks very much!" When his dear friend Eberhard Bethge delivers a cigar sent by Karl Barth, Bonhoeffer finds it so fine that he staggers at its "truly improbable reality."
Bonhoeffer's nicotine encomia brought to mind other theological figures who smoked. C. S. Lewis incessantly smoked cigarettes and a pipe. J. R. R. Tolkien appeared almost elfish in the author photo for The Hobbit, grinning and gripping a pipe. Barth, too, liked a pipe but sometimes smoked cigars. Other confirmed smokers include Paul Tillich, Reinhold Niebuhr, James Gustafson and Richard John Neuhaus. [...]
Enthusiastic smokers can also be found in the ranks of conservative evangelicals. The British Baptist C. H. Spurgeon believed cigar drafts prepared his throat for preaching. Challenged on this practice, Spurgeon replied that he would continue unashamedly to "smoke to the glory of God."
During his student days at Princeton, J. Gresham Machen remarked that cigar smoking was "my idea of delight" and wrote to his mother, "When I think what a wonderful aid tobacco is to friendship and Christian patience I have sometimes regretted that I never began to smoke." [...]
[Eminent Christian ethicist at Princeton University] Paul Ramsey appeared on the cover of the Methodist magazine the Christian Advocate [...] with a pipe in hand [...].