For his conduct during the assault on the Rebel Pah, near Tauranga, New Zealand, on the 29th of April last, in most nobly risking his own life, according to the testimony of Commodore Sir William Wiseman, Bart., C.B., in his endeavour to save that of the late Commander Hay, of the Royal Navy, and others.

[2]He also served in the same war under Sir Trevor Chute, and was present at the assault and capture of the Okotukou, Putahi, Otapawe, and Waikohou Pahs.

He was present for several battles, and received several decorations including the Iron Cross (second class) on the recommendation of the German Crown Prince: For services with the British Ambulance Corps caring for the wounded of the 22nd Division in the actions of Chateau-neuf and Bretoncelle, on 18th and 21st December 1870, and the battles of Orleans and Cravant, on 10th December 1870.

[1] Manley was awarded the honorary rank of surgeon general and retired from the army in 1884 with a distinguished service pension.

They had one daughter and five sons, including Lieutenant G. E. D. Manley, who died while on service in China shortly before his father's death in 1901.