The Roman Empire of the second century; or, The age of the Antonines. With ... maps (1876)
University life in ancient Athens (1877)
Livy: An account of his life and works (1879)
The Roman Empire of the second century or The age of Antonines (1880)
Stoicism (1880)
The English church in the 14th and 15th centuries (1900)
Scenes of rural life in Hampshire among the manors of Bramshott, (1901)
Charters and Records of Hereford Cathedral. (840-1421) Transcribed and edited with an introduction by W. W. Capes. Lat. (1908)
The Register of Richard de Swinfield, Bishop of Hereford (A.D. 1283-1317). Transcribed and edited by W. W. Capes. Lat. (1909)
The Register of Thomas de Charlton, Bishop of Hereford (A.D. 1327-1344). Edited by William W. Capes. (1912)
The Register of William de Courtenay, Bishop of Hereford, A.D. 1370-1375. Edited by William W. Capes. (1913)
The Register of John Trefnant, Bishop of Hereford, A.D. 1389-1404. Edited by William W. Capes. (1914)
The Register of Thomas Poltone, Bishop of Hereford, A.D. 1420-1422. Transcribed by the late William W. Capes ... To which is prefixed a memoir of Canon Capes by John Percival, Lord Bishop of Hereford. Lat. (1916)