His papers reveal encounters with visiting Irish writers, among them John Banim, Maria Edgeworth and Thomas Moore. The circle they suggest, however, does not include Irish political exiles in the French capital. Warden does not appear to have associated in Paris with Myles Byrne, William Putnam McCabe or John Allen, men who had assisted Robert Emmet in his attempt to renew the United Irish insurrection with a rising in Dublin in 1803.