Lots of UMW background data (as well as meanings of what might be obscure words, such as "mwchins").
a Word document; 370 KB
an xml document; 2.2 MB
a Word document; only 40 KB
a Word document; 28 KB
UMW at Wikipedia — a useful resource
A Welsh AccentMenna Elfyn reads 'Handkerchief Kiss' / 'Cusan Hances'
Richard Burton audio: First Voice
BBC Wales — English, nominally spoken with Welsh accents — you decide.
Google UMW timeline — Some interesting information here, if your curiosity is insatiable...