Author: George H. Heffner is the author of a travelogue titled "The Youthful Wanderer: or, An Account of a Tour through England, France, Belgium, Holland, Germany and the Rhine, Switzerland, Italy, and Egypt". The book was published in 1876 and is available online through Project Gutenberg [Project Gutenberg: The Youthful Wanderer].
1940 Census: There are also two records of a George H. Heffner in the 1940 US census. One record places him in Queens, New York in 1without any details about his profession [Ancestry.com]. The other record doesn't provide a location, but it suggests he was born around 1905 [Ancestry.com].