At the Cooper Union in New York City on May 10–11, 1860, the tenth national convention of 600–800 attendees was presided over by Martha Coffin Wright.
In der Cooper Union in New York City fand am 10./11. Mai 1860 die zehnte National Convention vor 600 bis 800 Anwesenden statt, Martha Coffin Wright war die Versammlungsleiterin.