Twin brother for Marion

Preferably of Scottish origin with [name_u]Marion[/name_u] being his twin sister. [name_f]My[/name_f] book takes place in the 18th century.

I don’t know how 1700’s appropriate these names are, but here are some Scottish name ideas:
[name_m]Dalziel[/name_m]
[name_u]Douglas[/name_u]
[name_m]Angus[/name_m]
[name_m]Cairn[/name_m]
[name_m]Alasdair[/name_m]
[name_m]Lachlann[/name_m]
[name_m]Raghnall[/name_m]
[name_m]Ruairi[/name_m]

Seconding what @EdgeOfTheMeadow said, I think [name_m]Alasdair[/name_m] and [name_u]Marion[/name_u] is a very good sibset (I also like Lachlann)