 About two months after the establishment of the Protectorate Government, Gallwey was given an important duty to carry out.One of the first assignments to Gallwey was the survey in October, 1891, of the Urhobo Oil markets along the Ethiope River.On 27 October 1891 accompanied by Mr. S. Munro of the African Association, Gallwey proceeded on the voyage for the survey in a launch hired from Messrs. Bey and Zimmer, a German trading firm at Benin River.