Hi,
This group of Nicols may be related, and there is an Amlwch connection. In A2A you can see that
"John Nicholas alias Nicholls, butcher" occurs a few times in Anglesey.
Llanedwen 10.11.1784 marriage John Nicholas single of Llanedwen & Jane Joseph single of Llanedwen by license
Quarter sessions complaint 2.5.1785 against John Nichols of parish Llanedwen, yeoman
Llanedwen 23.7.1820 baptism John son of Richard Nichols & Elizabeth Solomon
Llanfaelog 24.6.1831 marriage John Nicols of Llanedwen & Margaret Ellis of Llanfaelog
Llanfaelog, Brynddu CM 22.4.1835 birth of Elizabeth d of John Nicols & Margaret Ellis, lab of Rhyd Ty (child's parish is Aberffraw, father's parish is Amlwch, mother's parish is Aberffraw)
Llanfaelog, Brynddu CM 19.6.1836 birth of Margaret d of John Nicols & Margaret Ellis, lab of Rhyd Ty (child's parish is Aberffraw, father's parish is Amlwch, mother's parish is Aberffraw)
regards Graff