Leader LED 2067 was a selection of songs taken from the boxed set of 4 LPs, A Song For Every Season (Leader Records LEA 4046-4049, 1971); see The 'Celtic Music/Dave Bulmer' saga for details of why this and a great many other important recordings from the '60s and '70s are not available on CD.
A few corrections:
Verse 1, line 1: ...city, sin on earth,
("blessed" usually given as "blest")
Verse 2, line 2: Sweet innocence sounds meek and mild
For details of Copper Family publications and the texts of many of their songs, see Garry Gillard's The Copper Family.
A midi made from the notation in Bob Copper's book, A Song For Every Season can be heard for the time being via The South Riding Folk Network site:
It will also to the Mudcat Midi Pages. Normally I wouldn't include the bass part, but in this case it's an integral part of the song. A midi is no substitute for hearing the real thing, though, especially in a case like this.
The book was reprinted a few years ago, and is available direct from Coppersongs; contact details at Garry's website. It is a valuable "folklife" document, as well as being beautifully written; anybody at all interested in traditional song and in pre-industrial agricultural life should own a copy. In the USA it is probably easiest to order it, and the family's two most recent recordings, through Dick Greenhaus's Camsco Music. A 1950s recording of Bob and his late cousin Ron may be had from Sandy Paton's Folk-Legacy Records. There are also archive recordings available from Peter Kennedy's Folktrax, but be warned: his site appears only to work in Internet Explorer, and Mr. Kennedy belongs to the "old school" of collectors; rumour has it that his source singers don't necessarily get royalties, though I have no personal knowledge of the truth or otherwise of this.