"Scottie Dog" and "Aberdeen Terrier"
The white one is a West Highland terrier (or 'Westie'). His black companion is apparently a Scottish terrier. What their owners called them I have no idea.
Yorkshire Terrier is the name of the breed; it is a type of dog.
His name: Tommy, His breed: Terrier
Fala
The real breed name of pitbulls is American Pit Bull Terrier.
Franklin D. Roosevelt's Scottish Terrier was named Fala. Fala was a beloved companion of the President and became famous during Roosevelt's time in office.
Jack Russel Terrier is a noun, being the name of a breed of dog.
Jack Russel Terrier
The breed is The American Pit Bull Terrier. Some people shorten the breed's name but it is the same thing.
cairn
English bull terrier
Franklin Delano Roosevelt; the dog's name was Fala.