
Sometimes, you just have to acknowledge the power of the internet.
I would have known of the crest on Libertas Villas on Blackrock Road, near Blackrock Church, for some time but never knew of the origin. But the web does.
“EVANS (Ash Hill Towers, co. Limerick, and Miltown Castle, co. Cork; descended from THOMAS EVANS, brother of GEORGE, first Lord Carbery). Ar. three boars' heads coupled sa. Crest - A demi lion ramp. reguard. or,
holding betw. the paws of a boar's head, as in the arms. Motto – Libertas”
Irish Genealogy Project website