Phaedo Of native Athenians there was this Apollodorus, and Critobulus and his father, and Hermogenes and Epiganes and Aeschines and Antisthenes; and Ctesippus the Paeanian was there too, and Menexenus and some other Athenians. But Plato, I think, was ill.
Source: Perseus Project. Plato. Plato in Twelve Volumes, Vol. 1 translated by Harold North Fowler; Introduction by W.R.M. Lamb. Cambridge, MA, Harvard University Press; London, William Heinemann Ltd. 1966.