Career
Stacpoole was elected to the Parliament at an unopposed by-election in February 1860, standing as a Liberal after the sitting Liberal Member of Parliament John Fitzgerald had been appointed as a judge. He was re-elected in 1865, easily defeating a rival Liberal candidate, and was returned unopposed in 1868. When he stood as a Home Rule League candidate in 1874, he faced opposition again, also from his own party.
He died in office in 1879, aged 49.