 On August 15, 2007, Pearson reunited his Sudanese born adoptive daughter, Abuk Roy, with her twin sister, Achan and brother Ater, who were previously thought to be dead.Pearson originally stood as the Liberal candidate in London—Fanshawe in the general election of January 23, 2006, losing to Irene Mathyssen of the New Democratic Party.Following the resignation of Joe Fontana in London North Centre, he was elected in the resulting by-election on November 27, 2006.