The Topic LP of John Reilly's songs "The Bonny Green Tree" 12T359 seems to have been a fairly limited issue, and I haven't come across many second-hand copies, even on eBay.

Having said that, a number of the songs from that LP have since been reissued by Topic:-
In The Voice of the People series
Vol 3 TSCD653 Track 13 The Well Below the Valley
Vol 7 TSCD657 Track 19 The Rosin Box
Vol 10 TSCD660 Track 8 Adieu Unto All True Lovers
Vol 15 TSCD665 Track 7 Old Carathee
Vol 17 TSCD667 Track 2 Lord Baker
                      Track 13 Once There Lived A Captain

and also on the Topic compilation Irish Voices
TSCD702 Track 5 The Raggle Taggle Gypsy.