1 / 43

Presidential pooches

Mrs. Calvin Coolidge is shown in the South Grounds of the White House with her beautiful, pure white collie "Rob Roy" in Washington on Sept. 27, 1924. (AP Photo)

Presidential pooches: White House dogs through the years

A look back at some of the pups that have served as "First Dog", a loyal companion to the President of the United States, as well as other furry companions. (Yahoo News)

Find more news-related pictures in our photo galleries and follow us on Tumblr.