'Here is The News' An illustrated Manx History'
As reported by Terry Cringle with assistance from others.
Page 111.

In 1823 a man and woman were publicly executed at Castletown for poisoning the former's pregnant wife.
The sentence on that occasion was carried out by Mr John Cowley,Crammag by virtue of his office as Coroner of Ayre.
These two, were from Sulby.