In 1911, Dr. Merz was instrumental in arranging for Harry Atwood making a landing in his airplane in Erie County. Besides being an aviation enthusiast, he was very fond of driving his automobile. The September 16, 1936 issue of the Sandusky Register reported that Dr. Merz had purchased his first automobile on June 7, 1904, and he had been driving for 32 years. The Erie County Auto Club believed that Dr. Merz held the record for the number of years of automobile driving in Erie County, Ohio in 1936.
The son of Dr. and Mrs. Merz, also named Charles Merz, was editor of the New York Times from 1938 until 1961. His editorials against American neutrality in the years prior to World War II and in opposition to Senator Joseph McCarthy in the 1950s affected the way many Americans viewed current events of the time. Charles Merz also authored three books: Centerville, U.S.A., The Great American Bandwagon, and The Dry Decade. Charles Merz, the author and editor, died in New York City on August 31, 1977.