January 15, 1869
To the Senate of the United States:
I transmit, for the opinion of the Senate as to the expediency of concluding a convention based thereupon, a protocol, signed at London on the 9th of October last, for regulating the citizenship of citizens of the United States who have emigrated or who may emigrate from the United States to the British dominions, and of British subjects who have emigrated or who may emigrate from the British dominions to the United States of America.
ANDREW JOHNSON.
Andrew Johnson, Special Message Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/203184