Many thanks to all of you for your help.
I had hoped for a quick fix, but couldn't find anything on any of the search engines - you have more or less confirmed that I will have to do it the hard way - but at least you have turned up some of the centenaries for me, so it has been well worthwhile asking the question!
These will form the theme for a series of lectures in the summer term, next year (Not given by me, I hasten to add! - I hire a fleet of experts to do that job.)
My University has, for about nine years, now, presented ten lectures each term to the public, in a lecture hall down in the town centre, rather than up on campus. These are free, and the lecturers are mostly experts in their field, either from Lancaster Uni or from neighbouring Higher Education Institutions. Now and again, I use non-academic lecturers and each year I try to give two or three postgraduates the opportunity to lecture to a public audience.
I have been running the programme for the past three years, during which time the average audience has risen from just below 30 to nearly 50 - which means that, occasionally, we play to capacity crowds - a bum on each of the 87 seats in the lecture theatre! {smile]

When introducing the series, I shall give due acknowledgement for the international help I have received to set up the summer '03 series.
Thanks again.