lessons he learned from his experiences in Russia and Poland with future admirals in the U.S. Navy, including Raymond Spruance. On April 29, 1927, he delivered a lecture, "Developments in Russia" to the graduating class at the Naval Academy. He gave lectures on the techniques in intelligence gathering under the new method of instruction that started with Rear Admiral William V. Pratt's tenure as president of the college. Pratt admired Koehler for his "great mental ability," remarking that the Commander was "different, a clash of wits and brains. To be with him, was always mental refreshment for me." Jackson Tate described Koehler as, "very much of a specialist... rather than... regular Navy". Koehler's exploits were widely known and his legend grew as his naval career diminished to the ordinary. Rear Admiral Kemp Tolley, who was a young officer in the Asiatic Fleet during the 1930s, recalled an anecdote of Koehler's time in South Russia, "[Admiral McCully] had notified one of the destroyers in his command (in the Black Sea) that he would be aboard shortly. So the OOD (officer of the deck) was of course alerted to watch out for any approaching boat. Naturally, he was much astonished to hear shouts in the water some time later- from McCully and Koehler. They had swum out in the buff." On June 2, 1927, Koehler married Matilda Bigelow Pell (1895–1972), the divorced wife of former New York Democratic Congressman Herbert C. Pell (1884–1961), whom he had met several years earlier. They were married at the Madison Ave. Baptist Church on East Thirty-First St. in New York, having obtained a marriage license only hours before. Other than the minister, Rev. George C. Moor, the only others present were the bride's brother, Anson Bigelow and his wife. The marriage came as a surprise to most of their society friends, since the previous week, Matilda Pell was adamantly denying rumors of a pending marriage to a naval officer. She had obtained her divorce from Herbert Pell in Paris, the previous March. Pell remarried in Paris a couple weeks later. Coincidentally, on the day of his marriage, Koehler was promoted to commander. On September 3, 1929, their only child, Hugh Gladstone Koehler, was born. Named for Koehler's close friend, Herbert Gladstone, 1st Viscount Gladstone, Hugh Koehler became an investment banker and lived in Connecticut, before he died in 1990 shortly before his 60th birthday. Matilda's only