"Hither and yon" is it? Its not every day I hear that expression, and its one of my fave's. Can I ask where in the world you are?
My bike is "Mr Foldy"
I use Ortlieb City Rollers, not for knitting. They fit my Dahon Mu perfectly. But only just.

Enjoy your folder, and I hope you have luck with something for your bairn.