At the Summer Assizes of 1796, William Armstrong & John Monaghan of Clones, were indicted for tendering the Oath of the United Irishmen to Robert Gregg. The principal leader was Mr Burke Rice, of Leitrim, Tyholland, very near to Glaslough & Glennan. Each five societies formed a Company of 60 persons, and the Delegate of ten of these Companies was a Captain. The Delegate of ten of these Companies was a Colonel and he represented 600 persons. At one time there were 500,000 members of the Society of United Irishmen. Monaghan was well-organised and the Assizes reflect the involvement of its residents. Here is a quotation from the History of that time - "At Monaghan Assizes in 1797, Thomas Armstrong of Loughans, Co. Tyrone, William Armstrong of Bloomfield (the house occupied later by Rev D. Canon O'Connor PP of Errigal Trough), John Delap of Grange (listed in Errigal Trough Church Records), were tried for swearing in Thomas Hanna of Killydonnelly (listed in Drumsnat Church Records). Thomas Armstrong was also tried for swearing in Samuel Longmoore (listed in Ballyalbany Records), Samuel Mitchell of Ballinode (listed in Tydavnet Records)" etc etc. Most of these people were Presbyterians & Church of Ireland.
