He and his family moved to London by 1851 , where he was reportedly a choirboy as a youth and later clerked for a lawyer .
Born at Portobello Barracks near Dublin to Edward Brennan and his wife Margaret , Talbot was the fifth of six siblings .
Talbot and Talbot 's family moved to London by 1851 , where he was reportedly Talbot choirboy as a youth and later clerked for a lawyer .
Born at Portobello Barracks near Dublin to Edward Brennan and his wife Margaret , Talbot was the fifth of six siblings .