I have quite a few traditional folk songs. I'll post a few when I get time. The origins are not always clear cut, but Irish, Scottish, English, American and Australian are all in my collection.
To begin with, here are a few links to some of my favourite trad and folk song resources. I hope you'll find something amongst these.
To be honest, the song traditions of Ireland and Scotland seem to be more actively preserved these days than those of England. When I go on vacation to Ireland, as I do every year, I find it much easier to find interest and enthusiasm for traditional music - even in non-tourist areas - than in England, where I live. So, the majority of the songs you'll find are likely to be Irish ones, or British ones that have been adopted and adapted by the Irish.
Check out Planxty, Christy Moore, and The Dubliners on Youtube if you haven't already.
Anyway, here's a link that may or may not be useful. I'll also post some song lyrics/chords as I get the chance.
http://www.traditionalmusic.co.uk/ - A big index of sites
http://www.geocities.com/bettyloucountry/dubliners.htm - Lyrics and chords for songs recorded by The Dubliners (many traditional songs)
http://unitedireland.tripod.com/irish_lyrics_chords_a_e.html - lyrics and chords to loads of songs
If you find a song is in the wrong key for you or your uke, transpose it here:
http://www.logue.net/xp/
Hope some of that is useful for you. :shaka: