| Endeavour of a Liberal Viceroy: Richard, Marquess Wellesley in Ireland, 1821-1828 | McGuckian, Sile | Thesis | | 2016 |
| Life of the Marquess Wellesley | Malleson, G. B. | Monograph or Collective Volume | | 1888 |
| Pro-Consul and Tribune. Wellesley and O'Connell. Historic Portraits | MacCullagh, William Torrens | Monograph or Collective Volume | | 1880 |
| Richard Colley Wellesley : a viceregal champion of Catholic emancipation | Grant, Hugh | Article in Journal | | 1955 |
| Richard Colley Wellesley : an Anglo-Irish advocate of Catholic emancipation | Demichele, M. D. | Article in Journal | | 1970 |
| Richard Wellesley, Marquis Wellesley, 1760-1842 | Brynn, Edward P. | Thesis | | 1977 |
| Some further thoughts on the Irish Wesleys and the Wellesley connection | Gentry, Peter W. | Article in Journal | | 2009 |
| The eldest brother : the Marquess Wellesley, the duke of Wellington's eldest brother | Butler, Iris | Monograph or Collective Volume | | 1973 |
| The Marquess Wellesley, K.G. | Hutton, W. H., Dean of Winchester | Monograph or Collective Volume | | 1893 |
| The Theatre Royal bottle riot of 1822 and the Orange Order in Dublin | O'Reilly, Hugh | Article in Journal | | 2019 |
| Wellington : his Irish connections | | Monograph or Collective Volume | Meath Heritage Centre | 1992 |
| Wellington and his brothers | Carver, Michael, Baron Carver | Monograph or Collective Volume | Southampton University Library | 1989 |
| Whiteboys, Wellesley and the Brampton Men | Harrison, Jennifer | Article in Book | | 1996 |