Born in Jamaica, West Indies 26/3/1847.
Parents James Byam Porteous of Jamaica and Emily Kemble daughter of G. S. Kemble Esq.
Francis was educated by the Rev. A. Jessop at Helston, Cornwall. The Mount Radford School (Dr. Roper’s) of Exeter, Devonshire. Dr. Carter’s School, Jersey, Channel Islands. Royal Military College Sandhurst.
His father, James Byam Porteous, was born in Falmouth on 8 Sep 1807. and died at Grove Road, Clapham Park, London 5 Nov 1861.