The Ploughboy
Come all you jolly ploughboys, come listen to my lays, And join with me in chorus, I'll sing the ploughboy's praise;
(Master Title 'The Brisk Young Ploughboy, Roud 1205.

The Ploughboy (2) - deleted, don't know why - probably a duplicate
The Jolly Ploughboy ????

Jack, the jolly ploughboy, was ploughing up his land; His horses lie beneath the shady tree.
(Master Title, 'The Pretty Ploughboy', Roud 186, Laws M24

The Ploughman (3)
The ploughman he's a bonnie lad, His mind is ever true, jo;
The Ploughman (2)
The ploughman he's a bonny lad, And does his work at leisure,
(1&2 are the same song without Roud number as they are not in any of the oral tradition collections. They undoubtedly were in oral circulation late 18th century and concern sexual euphemism of the 3 oxen, the foremost being the ploughman's penis and the the other 2 his bullocks. Plenty of different printed copies survive)

The Jolly Ploughboy (2)
Come, all you jolly ploughboys, and help me to sing; I will sing in the praise of you all.
(Master Title 'The Jolly Ploughboy II' -Copper Family The Young Brethren, Roud 202)

The Ploughboy (Warwickshire RHA)
I am a jolly ploughboy and I'm ploughing up the fields all day, 'Til a silly little thought came into my head I thought I'd be away,
The Merry Ploughboy
I am a merry ploughboy, I plough the fields all day,
(These are both the same song. Master Title 'The Merry Ploughboy' Roud 163)

There are hundreds of ploughboy songs. Just enter 'ploughboy' into the Roud Index and you get over a 1,000 hits.

21st may 97 is 'The Ploughboy Turned Soldier' Roud 1446

24th March 97 The Sligo Ploughboy I can't find in Roud but it's probably Roud 675 or Roud 2930.

The subject of this thread 'The Flaxen Headed Ploughboy' doesn't have a Roud Number because it's an art song presumably, but as a broadside it is Roud V545.

5th Nov 2000 Master Title 'The Lark in the Morning' is Roud 151.

Hope this helps.