LLANFAIR
For a beautifully written description of English canal boating in the days of its prime, early 1800's, read C.S. Forester's Honrnblower and The Atropos. At least the first chapter altho' I'll reccomend the entire book. The boat described may not strictly be a narrow boat but at 70' with a 5' beam you must admit that its a very narrow craft.
Don