George Albert Frost was an American 19th century landscape painter who accompanied the construction of the San Francisco–Moscow telegraph line. Probably he liked his stay in Russia/Siberia and was sad when he had to go back to the US.

https://www.sphinxfineart.com/media/LeSphinxMedia/Object/Documents/Frost%20-%20Six%20Drawings.pdf

George Frost Kennan was an American diplomat who was ambassador in Moscow for a short period during 1952. Further, see the comment of @Rat_in_a_hat@lemmy.ca