Give me 3 last names

Pomfrey, Harry Potter character
Montgomery, Australian actress
Bush, family nickname of the 41st President

Reinhard.

Selten - Nobel prize winner in economics
Goebel - German conductor and violinist
Bonnke - German evangelist

Next: Chester

Nimitz, noted American admiral
Arthur, 21st President
Cheetah, snackfood mascot

Bertrand.

Bertrand Russell, philosopher/mathematician/pacifist
Bertrand Acosta, colorful aviator who flew in the Spanish Civil War
Bertrand Ramcharan, Chancellor of the University of Guyana

Gustav

Gustve Klimt, Austrian Painter.
Gustav Mahler, Bohemian-Austrian Composer.
Gustav Stickley American Craftsman Furniture Maker and Architect.

Sinclair.