Histoire picturale de la Guerre de l'indépendance hellénique ... Notice historique de ... Johannes Gennadius, etc. [Reproductions of paintings executed by Panagiotes Zographos under the direction of I. Makrugiannes. With portraits.].
Hellenism in England: a Short History of the Greek People in this Country from the Earliest Times to the Present Day, with Seventeen Illustrations ... With an Introduction by ... Joannes Gennadius
The Retirement of M. Gennadius. Speeches of Monsieur Venizelos ... and Others at a Valedictory Dinner ... on November 18, 1918 in Honour of M. Gennadius
Kolokotronês the Klepht and the Warrior. Sixty Years of Peril and Daring. An Autobiography. Translated ... with an Introduction and Notes by Mrs. Edmonds ... With a Preface by Mons. J. Gennadius ... Illustrated
The Anglo-Hellenic Alliance. Speeches of Mr. Winston Churchill, the Greek Minister (Mr. Gennadius) and Viscount Bryce at the Mansion House June 27, 1918, The Anniversary of the Entry of Re-united Greece Into the War, Etc
̔Ο ̓Αρχιεπισκοπος Συρου, Τηνου Και ̓Ανδρου Μεθοδιος Τοις ̓ορθοδοξοις. Συμφωνια ̓Αγγλικανης Και ̓Ορθοδοξου ̓εκκλησιας Προς Τα Δογματα Και Την Πιστιν Ἀυτων. [Being a Translation by J. Gennadius of Bishop Wordsworth's 'Some Points in the Teaching of the Church of England Set Forth for the Information of Orthodox Christians of the East.' With a Preface by Archbishop Methodios.].
Sport in Greece. An Article Contributed ... to "Sport in Europe." Special Reprint with Additions, Etc
Allocution on the Relations of the Anglican and Eastern-Orthodox Churches ... Delivered ... February 23, 1923. [With a Greek Version by Dr. J. Gennadius.].
The Johnson Club at Bath. Ceremony of the Unveiling of a Tablet Commemorating the Residence of Mrs. Thrale in Bath, with an Address by the Prior of the Johnson Club, J. Gennadius. Reprinted from the "Bladud," Etc
Teaching of the Church of England on Some Points of Religion, Set Forth for the Information of Orthodox Christians of the East ... Second Edition, Revised.- ̔Η Διδασκαλ́ια Τη̂ς ̓Εκκλησ́ιας Τη̂ς ̓Αγγλ́ιας ... Μεταφρασθει̂σα ̔υπ̀ο ̓Ιώαννου Γενναδ́ιου. ́̓Εκδοσις Δευτ́ερα, ̓αναθεωρηθει̂σα. Eng. & Gr
Λογοι Του Κ. Ὀϋινστων Τσωρτσιλ, Του ̔Ελληνος Πρεσβευτου [i.e. I. Gennadios], Και Του ̔υποκομητος Μπρα̈ις Ἐις Το Δημαρχειον Του Λονδινου, Την 14/27ην ̓Ιουνιου, 1918, Etc