Peel 854 : Percy, Algernon Heber (1845-1911) [détails]; Percy, Heber (Mrs) [détails]. Journal of two excursions in the British North West Territory of North America by Algernon Heber Percy and Mrs. Heber Percy, 1877 & 1878. Market Drayton, England : Printed for private circulation by Bennion & Horne, 1879?. .