Our only source for Ambereuse is Bourne's History of Kennebunk. After Bourne described the local Indigenous people as "wild savages," he wrote that "This strange development of character was not universal. There was one among them who seemed to have more of the spirit of civilized man. Ambereuse, living in one of the wigwams on Mousam river, was a man of peace; never manifesting any propensity for strife and war, but always desiring to live on friendly terms with the white men. He was never known to have any agency in war. He said he did not like war. Whenever his companions deserted their wigwams for their direful work, he remained at home....This friendly Indian lived here till 1752, when he removed to South Berwick." - Bourne, pp. 327-329

Bibliography:

The History of Wells and Kennebunk from the Earliest Settlement to the Year 1820 - by Edward E. Bourne (1875)