If it's 'Good Fish Chowder' ("Jerry Mulligan came to see me. Dropped his cap in the chowder pot...") it's in the DT. I have different words though, and it's a version with 6 verses versus the DT's 4 verse version, even though both this and the DT's come from the singing of Joe Hickerson. Which probably isn't unusual - just that there are more chorus opportunities with 6 verses. I don't know what tune the DT has, but the tune named for it here is the 'Winnipeg Whore'.

I'm pretty sure I'm going to be there. I don't have any diseases and my voice works and I'll be looking for reasons why I can't try to fix my lawnmower.