Here is Come In:

COME IN, COME IN

CHORUS:
Come in, come in, we'll do the best we can
Come in, come in, bring the whole bloody clan
Take it slow and easy and I'll shake you by the hand
Set you down, I'll treat you decent, I'm an Irishman.

I have traveled East, I've traveled West
I roamed from town to town
I cut the harvest down and there are people up and down
Wherever I go the welcome mat was always waiting for me
So fill your glass along with us and sing Old Ireland Free.

When I am gone some other place, my memory growing dim
Just fill a glass, drink a toast, invite the colleens in
Think about the good old times and you'll remember me
When good old songs are roaring out and porter flowing free.

@drink

Also, I searched the database for songs to Marching Thru Georgia by
1) Search for Georgia and note the name of the tune: MRCHGRGA in this case
2) Search for *MRCHGRGA You need the asterisk for tunenames because of the stuff(partly invisible) before it.
This yielded the original Marching Thru Georgia and three others.