| A forgotten Ulster bard | McClelland, Aiken | Article in Journal | | 1980 |
| Amyas Griffith | McClelland, Aiken | Article in Journal | | 1972 |
| Folklife miscellanea from 18th and 19th century newspapers | McClelland, Aiken | Article in Journal | | 1973 |
| Irish Presbyterian registers | McClelland, Aiken | Article in Journal | | 1959 |
| Orange folk art in Ireland | Ballard, Linda-MayMcClelland, Aiken | Article in Journal | | 1996 |
| Orangeism in county Monaghan | McClelland, Aiken | Article in Journal | | 1978 |
| Provincial printing : Tandragee | McClelland, Aiken | Article in Journal | | 1969 |
| Reminiscences of Robert Young | McClelland, Aiken | Article in Journal | | 1971 |
| The Ballykilbeg private press | McClelland, Aiken | Article in Journal | | 1976 |
| The battle of Garvagh | McClelland, Aiken | Article in Journal | | 1973 |
| The battle of Saintfield, 9th June, 1798 | McClelland, Aiken | Article in Journal | | 1982 |
| The Birch family of Birchgrove, parish of Tullylish | McClelland, Aiken | Article in Journal | | 1960 |
| The Irish Harp Society | McClelland, Aiken | Article in Journal | | 1975 |
| The later Orange Order | McClelland, Aiken | Article in Book | | 1973 |
| The origin of the Imperial Grand Black Chapter of the British Commonwealth | McClelland, Aiken | Article in Journal | | 1968 |
| The Ulster press in the 18th and 19th centuries | McClelland, Aiken | Article in Journal | | 1974 |
| Thomas Ledlie Birch, United Irishman | McClelland, Aiken | Article in Journal | | 1961 |
| Thomson of the Tays and the Belfast beggars | McClelland, Aiken | Article in Journal | | 1976 |
| William Johnston of Ballykilbeg | McClelland, Aiken | Thesis | | 1978 |