The Parish of Drumhome can claim to be the only foundation of the saint mentioned in Adamnan's hagiographical work. Although Adamnan does not state emphatically that Colmcille built a church there, we can infer that he did from what he does say: “Another vision, differently revealed at the same hour, was told with strong asservation to me, Adamnan, then a young man, fby one of those that had seen it, a very aged soldier of Christ, of the family Mocu Firroide, whose name in Irish Ernene, can also be rendered 'man of iron'. He (himself a holy monk) lies buried among the remqains of other monks of Saint Columba, and awaits the saints, in the ridge of Tòimm(Dorsum Tommae”. It can be assumed thaty this burial ground was adjacant to a religious foundation of the saint. In the eighth century a controversy arose between the Columban monks of Drumhome and Ardstraw. The book of Armagh records the following from the passage of Tirechan, concerning St. Assicus : “Et sunt ossaejus in campo sered hi Raith Chungi monachus Patricii, sed contenderunt eum familia Columbae-cille et familia Airddstratha”. 

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Annalisistic entries mention the death in 850 of “Colgu, son of Cellach, superior of Cell Tuama”, and in 886 “Robertach, son of Colcu, superior of Cell Tuama, fell asleep”. In 921, the same annals record the obit of an abbot of Daire Calcaich(Derry) and Druim Thuama(Drumhome). As stated earlier this seems to show the wealth of monasteries used in espousing and combining both titles. The Middle Irish Life does not mention the foundation of Drumhome as part of the saint's circuit. Drumhome must have had a significance , as in 1197 the annals record the obit of “Flaherty O'Muldory, Lord of Kinel Connell, Kinel Owen and Oriel and defender of Tara.... and was interred at Drumhome. The omission of Drumhome, like other foundations of the Columban familia could reflect their fortunes politically and religiously at a given time – in this regard the mid twelfth century. Internecine monastic strife coloured much of what was written, therefore, competing interests probably elevated one church and reduced another. Yet in Maghnas Ò Domhnaill's sixteenth century BETHA, he refers to a reputed poem by the saint, in which he lavishes praise on his chief monasteries in Ireland. He says “Beloved Drumhome with sweet acorns”.

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References:

 Maghnas Ò Domhnaill (mid 16th century): Betha Colaim Chille

 Adamnan Life of St. Columba edit. Wm. Reeves (19th Century)

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