No information has come to me about any report from the Methodist Missionary Board in China that American gunboats are not helpful there and ought to be withdrawn. Such information as I have has rather been in the other direction. I think that the last session of the Congress made a specific appropriation for the purpose of building a special gunboat, or gunboats, to run on the rivers in China, some of them. These have to be of light draft and of special construction, and I think the building of those boats is now going on in China. I know of no such recommendation as this. There may be something of that kind in the State Department that hasn't come to my attention.
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/349134