Excerpts of the President's News Conference
April 06, 1928
You will notice I have a new addition to the conference. Another dog has come in. That is a dog that is very much attached to my wife and he is very disconsolate in the absence of his mistress, but he has been willing to come over here.
Source: "The Talkative President: The Off-the-Record Press Conferences of Calvin Coolidge". eds. Howard H. Quint & Robert H. Ferrell. The University Massachusetts Press. 1964.
Calvin Coolidge, Excerpts of the President's News Conference Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/349243