Grand Officer of the Order of Saints Maurice and Lazarus (31 December 1934; Commander: 20 July 1925; Officer: 19 June 1924)
In 1906, he was nominated to become a Knight of the Order of Saints Maurice and Lazarus.
In June 2005, Trenear-Harvey was conferred with a knighthood in the Order of Saints Maurice and Lazarus from HRH the Duke of Savoy.
He was also admitted into various orders of knight hood, including named to the Order of the Crown of Italy by King Vittorio Emanuele III, and to the Order of Santi Maurizio e Lazzaro, by King Umberto I following the inauguration of his monument to Quintino Sella in Biella (won commission by competition).
Umberto I of Italy appointed Calori Commander of the Order of Saints Maurice and Lazarus at the ceremony sponsored by the Academy of Sciences to honor its fifty years of teaching.
The United States awarded him the Distinguished Service Medal, France made him a Commander of the Légion d'honneur, while he was also Commander of the Greek Order of the Redeemer, the Japanese Order of the Rising Sun, and the Italian Order of Saints Maurice and Lazarus.
Order of the British Empire | Order of Australia | Law & Order | Order of the Bath | Order of St Michael and St George | Dominican Order | The Church of Jesus Christ of Latter-day Saints | Royal Victorian Order | Law & Order: Special Victims Unit | Maurice Ravel | Distinguished Service Order | All Saints | Order of Canada | Order of the Garter | New Order | Lazarus | Order of Saint Benedict | Lazarus of Bethany | Order of Friars Minor Capuchin | Order of the Crown of Italy | order | Independent Order of Odd Fellows | Maurice Chevalier | Royal Guelphic Order | Maurice Maeterlinck | Law & Order: Criminal Intent | All Saints (TV series) | Order of St. Olav | Maurice Richard Arena | Order of St. Gregory the Great |
On December 10, 2010 Myers received the honour Knight Grand Cross of the Order of Saints Maurice and Lazarus by Prince Victor Emmanuel in recognition of the Archbishop’s exemplary leadership as head of his large Catholic archdiocesan flock and as an important church and religious leader in America.