[2] Also on the staff, soon afterwards, at St Columba's, was music master Edwin Monk, with whom Singleton was subsequently to work also at Radley; the two of them still later collaborating in the making of a hymnal at York more than two decades later.
[3] In 1850 Singleton noted in his diary that the school's boys were "bold, manly and vigorous at their games...very proud of their college".
Singleton's resignation from St Columba's in 1846 followed a controversy after he insisted on a rigorous regime of fasting for the boys.
Singleton was committed, as before, to a monastic and ascetic regime for the boys at Radley, at odds, it has been noted, with Sewell’s "more relaxed, arcadian approach to education."
[6] While at Radley Singleton published The Psalter Arranged for Chanting (1847), and discourses entitled Uncleanness, the Ruin of Body and Soul (1850).
[7] It was here that he continued his long acquaintance and collaboration with Edwin Monk, who had been Precentor at both St Columba’s and Radley, and who was now Organist and Master of Choristers at York Minster.