In celebration of National Pet Day, the world’s first holiday dedicated to man’s best friend, we have been searching through the archive for examples of incredible canines throughout history. Search the newspapers From daring rescuers to lovable rogues, we have put together a selection of magnificent mutts whose remarkable stories are guaranteed to warm the hearts of even the most determined cat lovers. Swansea Jack Swansea Jack was a black retriever with a longish coat who lived with his owner, William Thomas, near the …