Our readers have already been informed that some of the citizens of the District of Columbia, will petition Congress at its next session to put an end to slavery in that District.  We rejoice at this movement among those who are most directly affected by the harden and reproach of this institution; and trust that it will be seconded by all the friends of liberty and humanity throughout  the nation.  Though the inhabitants of the District  are the principal sufferers from the existence of slavery among them, yet the disgrace and criminality of tolerating  it rest on the  whole country.

As long as the American government permits slavery to exist in the  District, the Americans as a nation are the friends and patrons of slavery.   The indifference with which this subject has hitherto been regarded, is astonishing. ……………………………

(Liberator, June 18, 1831, pg 1)