What's the Kennection? #23

Mary Poppins's friend Bert works as a street artist and musician and a kite salesman, but his main job seems to be cleaning what?

What religious group was founded in 1865 by William Booth, who became its first General?

In 1927, Felix the Cat was the first character ever to appear in balloon form at what event?

What vehicle is used to drive "Over the River and Through the Wood," according to the traditional song?

On April 6, 1909, Robert Peary and Matthew Henson claimed to be the first two people ever to reach what destination?

What's the "Kennection"?