Delaval James de la Poer Beresford Irish rancher in Mexico, b. 19 January 1862, d. 22 December 1906 (1862–1906) Parents Christiana De La Poer Beresford, Marchioness of Waterford John Beresford, 4th Marquess of Waterford Children Siblings John Beresford, 5th Marquess of Waterford Lord Marcus Beresford Charles Beresford Lord William Beresford