About Arthur Cowper Ranyard
Arthur Cowper Ranyard, English astrophysicist and astronomer (died 1894) After the president's inaugural address Ranyard read the first paper, 'On Determinants'. The first meeting mentioned in the minutes of the society, however, was held on 16 January 1865, when De Morgan was elected president, and Messrs. Proceeding to Cambridge, Ranyard entered Pembroke College in October 1865, and graduated M.A. in 1868.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.