Difficulty of Matriculating Arms?

[MacMillan of Rathdown]

I was under the impression that in order to be granted arms, you must show direct descent from a person previously granted arms.

This is not the case.

...if you can show direct descent from someone born in Scotland, for example my grand-father born in Scotland 1918, you can apply for arms if you are willing to go through the preocess and expense?

Scott

The shot answer to your question is, "yes" provided you can prove descent from a Scottish ancestor. However, since Canada has its own Heraldic Authority Lyon may first require that you obtain permission from them to seek out Scottish Arms.