William Cubbon's book 'Island Heritage:
Online at: www.archive.org/stream/cu31924028041337/cu31924028041337_djvu.txt

has a mention of a Scotsman by the name of David Conyngham in 1583...

'Among the archives in the Rolls Ofi&ce is the first civil list
we have come across, dated 1575, three years after Earl Henry's
accession. It is full of human interest. One entry shows the
wife of John Kyghlei, once the Deemster's widow, to be the
launderer, and the other that Richard Lucas was the ' Tayster '
for the Lord. It was his duty to taste food and drink to ascer-
tain their quality or to detect poison.* (See Plate 25)

At this period alien merchants who wanted to trade perman-
ently in Man had to purchase their freedom. In 1583 David
Conyngham, Scottishman, petitioned Earl Henry ' that he
might become a free denizen to him and to the Isle and that he
would accept of his faith and fidelitie by way of othe.' His
freedom fee was 6s. 8d. and he was sworn by Deemster Sams-
bury. '