Can anyone tell me who wrote the song I know as "A Drinking Song"?

It has the following opening lines to the first verse:

Of all the songs, I'd like to sing
A drinking song's the best, sir,
And with my pint pot in my hand
I'll put it to the test, sir.

The chorus is:

So sing a song, a drinking song
And sing it just for pleasure
And when that song be o'er and done
We'll have another measure.

I'd like to have a go at it but would prefer to be able to credit the author.

I have the words to the remainder of the song, which deal with morris men dancing, drinking and singing in Padstow on 1st May, so I only need to know the author.

Can anyone help, please?

Clive B