Kallistos (Samaras) of Zelon
Bishop Kallistos of Zilon
He studied Theology at the Theological School of the Holy Cross in Boston.
On April 13, 1980 he was ordained Titular Bishop Zilon, Assistant Bishop of the Archdiocese.
From 1982 to 1983 he was ruling hierarch of Diocese of Denver.
He was Vicar of the Diocese of Chicago from 1982 to 1983.
Since 1988 he was ruling hierarch of Diocese of Denver.
He passed away in March 1991.