at Frankfurt became preoccupied with disputes over the use of the prayer book and church order in general. The chief members of the Frankfurt congregation during its existence were David Whitehead, Sandys, Nowell, Foxe, Bale, Horne, Whittingham, Knox, Aylmer, Bentham, Sampson, Roger Kelke, Chambers, Isaac, both Knollyses, John and Christopher Hales, Richard Hilles, Bartholomew Traheron, Robert Crowley, Thomas Cole, William Turner, Robert Wisdome. An informal university established by the congregation had Horne teaching Hebrew, John Mullins (who came from Zurich after Knox left) teaching Greek, and Traheron teaching theology. Thomas Beccon came from Strasbourg to Frankfurt; he taught at Marburg University around 1556–1559. All records of the group were destroyed in World War II with the Frankfurt city archives, and only partial transcripts from prior scholarship remain. These records disclose that native Frankfurters distrusted the English and suspected they were being used by members of the nobility to diminish the privileges of the burghers. The English were also accused of unfair commercial practices and of competing with local artisans—accusations which led to detailed censuses of the immigrants. Troubles at Frankfurt The organizational and liturgical differences between the English churches in exile soon led to protracted conflicts concentrated in Frankfurt. A particular clash between Richard Cox and John Knox came in time to stand for the general struggle between the Church of England and Presbyterian views. Geneva Led mainly by Knox, the largest, most politically and theologically radical concentration of English exiles was at Geneva, reaching a peak of 233 people or about 140 households. (This was approximately 2% of the city's population.) Names, dates of arrival, and other information is preserved in the Livre des Anglais (facsimile edition by Alexander Ferrier Mitchell), a folio manuscript kept at the Hotel de Ville of Geneva. New members admitted to the church numbered 48 in 1555, 50 in 1556, 67 in 1557, ten in 1558, and two in 1559. Seven marriages, four baptisms, and 18 deaths are recorded. This was the first English congregation to adopt the wholly Presbyterian form of discipline and worship that was resisted in Frankfurt. These forms and standards were printed in 1556 as the Book of Geneva which went through several editions after 1556 in Geneva and was in official use in the Church of Scotland from 1564 to 1645. Sometimes titled Book of Our Common Order, it is the basis for the modern Book of Common Order