Since there are so many possible patron saints of St Johns Ambulance Australia, I'm starting my research into the organisation seeing how far back I can trace it. The further back I can follow it, the more patrons I can knock off the list.
I've trolled through a number of the St Johns Ambulance Historical
Society proceedings and have discovered a number of key figures in their
history, mostly leaders / founders of order chapters in different
locations. I believe some of these figures are some of the St Johns
listed in Wikipedia so I can scrap them from the list. They are: St John at Acre (Guerin de Montaigu (1207–1228), 13th Grandmaster), St John at Rhodes (Pierre D’Aubusson (1476–1503)), St John of Malta (Philip Villiers de L’Isle Adam (1521–1534), Pietro del Ponte (1534–1535), Didier St Jaille (1535–1536), John de Homedes (Juan de Omedes) (1536–1553), Claude de la Sengle (1553–1557)).
So basically, any St John post 1207 is now off the list.
John the
Evangelist (born 1st century), speculated author of the Fourth Gospel,
traditionally identified with John the Apostle
John of
Patmos, author of the Book of Revelation, traditionally identified with John
the Apostle and Evangelist
John the
Baptist, preacher, ascetic (c. 5 BC – c. 30 AD), and reported baptizer of Jesus
Christ
John the
Wonderworking Unmercenary (d. c. 304), Egyptian or Mesopotamian healer
John
Chrysostom (c. 340 – 407), Antiochene Archbishop of Constantinople
John Cassian
(360 – 435), probably Scythia-Minor priest and abbot
John and Paul
(d. 362), Roman martyrs
John of Egypt
(d. 394), Egyptian hermit
John the
Silent (452-558), Bishop of Taxara
Pope John I
(died 526), Italian pope
John of
Ephesus (507-586), Syrian ecclesiatical historian
John Climacus
(525–606), Syrian or Byzantine monk and abbot
John
Scholasticus (died 577), 32nd Patriarch of Constantinople
Patriarch John
IV of Constantinople (d. 595), also known as John the Faster, first Ecumenical
Patriarch
John the
Merciful (died c. 610), Cyprian Patriarch of Alexandria
John of
Damascus (676–749), Syrian monk and priest, also known as John Damascene
John of
Beverley (died 721), Angle bishop
John of Pavia
(died 813), Bishop of Pavia
John of Rila
(876–946), Bulgarian priest and hermit
John Gualbert
(985-1073), Founder of the Vallumbrosan Order
John Theristus
(1049-1129), Italian benedictine monk
John of
Pulsano (1070-1139), or Giovanni di Matera, Italian abbot
John of the
Grating (1098-1168), Bishop of Aleth
John of Matha
(1160–1213), French priest; founder of the Trinitarian Order
John of Meda
(died 1159), Italian priest
John Kukuzelis
(1280-1360), Bulgarian composer, singer and reformer
John of
Nepomuk (1340–1393), Bohemian vicar general of Jan of JenÅ¡tejn
Giovanni da
Capistrano (1386–1456), Italian friar; summoner of European troops for the 1456
siege of Belgrade
John Cantius
(1390-1473), Polish priest and theologian
John of
Sahagún (1419-1479) Spanish priest
John Fisher
(c. 1460 – 1535), English cardinal and martyr
Juan Diego
(1474-1548), first Native-American saint
John Houghton
(martyr) (c. 1480 – 1535), English abbot and martyr (one of the Forty Martyrs
of England and Wales)
John de Ribera
(1532-1611), or Juan de Ribera, Bishop of Valencia
John Stone
(martyr) (died 1539 / died 1539), English friar and martyr (one of the Forty
Martyrs of England and Wales)
John of God
(1495–1550), Portuguese friar; founder of the Brothers Hospitallers of St. John
of God
John of Avila
(1500–1569), Spanish Jewish converso priest, missionary and mystic
John Payne
(martyr) (1532–1582), English priest and martyr (one of the Forty Martyrs of
England and Wales)
John Leonardi
(1541–1609), Italian priest; founder of the Clerks Regular of the Mother of God
of Lucca
John of the
Cross (1542–1591), Spanish Jewish converso friar, priest and mystic; joint
founder of the Discalced Carmelites
John Boste (c.
1540 – 1594), English priest and martyr (one of the Forty Martyrs of England
and Wales)
John Rigby
(martyr) (c. 1570 – 1600), English martyr (one of the Forty Martyrs of England
and Wales)
John Roberts
(martyr) (c. 1570 – 1610 / c. 1570 – 1610), Welsh priest, Prior of Saint
Gregory's (one of the Forty Martyrs of England and Wales)
John Sarkander
(1576–1620), Polish priest and martyr
John Ogilvie
(saint) (1579–1615), Scottish priest and martyr
John Jones
(martyr) (16th century – 1598), Welsh priest and martyr (one of the Forty
Martyrs of England and Wales)
John Macias
(1585-1645), Spanish missionary
John
Southworth (martyr) (1592–1654), English priest and martyr (one of the Forty
Martyrs of England and Wales)
Jean de
Brébeuf (1593–1649), French missionary and martyr (one of the North American
Martyrs)
John Francis
Regis (1597-1640), French priest
John Kemble
(martyr) (1599–1679), English priest and martyr (one of the Forty Martyrs of
England and Wales)
John Berchmans
(1599-1621) Flemish seminarian
John Eudes
(1601-1680), or Jean Eudes, French priest and founder of the Congregation of
Jesus and Mary
Jean de
Lalande (1615-1646), French missionary and martyr (one of the North American
Martyrs)
John Wall
(priest) (1620–1679), English priest and martyr (one of the Forty Martyrs of
England and Wales)
John
Plessington (c. 1630 – 1679), English priest and martyr (one of the Forty
Martyrs of England and Wales)
John de Brito
(1647-1693), Portuguese missionary and martyr
John of
Tobolsk (1651-1715), Metropolitan of Tobolsk
Jean-Baptiste
de La Salle (1651–1719), French priest; founder of the Institute of the
Brothers of the Christian Schools
John Joseph of
the Cross (1654–1739), Ischian friar, priest and Vicar Provincial of the Alcantarine Reform in Italy
Saint John
Lloyd (died 1679), Welsh priest and martyr (one of the Forty Martyrs of England
and Wales)
Helpful websites:
St Johns Ambulance Australia (a great group of people who volunteer their first aid assistance at many major events across Australia, I was a cadet in the organization many years ago - volunteer or donate today!)