Famous dogs

Hachikōs story is one of the most famous dog fates in the world and to this day a symbol of a dog's loyalty.
When the Titanic sank, dogs were also on board. To save them, some of the owners risked their necks.
What do the three four-legged celebrities have in common?
Lump was a famous dachshund.
In 1944, Franklin Roosevelt gave a campaign speech, ...
Barry is a "Swiss national dog".
Butz was a poodle, and a well-known one in town.
Roselle was a Labrador bitch and belonged to the American Michael Hingson.
The Serum Run
Ever heard of Togo and Balto?