There are actually two versions of this song right in the data base, but neither of them has her sitting " 'neath the lilacs". That threw me off, at first. Go to the Digital Tradition Search box at the top of the main page and type in "[smoked his cigar]" without the quotes. You'll get a choice of "Smoked His Cigar" and "Oh How He Lied" - basically the same song with a few variations. Your version, having her in 'neath the lilacs instead of him in his hammock is just one more...ain't folk music grand!
The version my grandmother did, and now my father does, is bits and pieces of both, with new verses made up when there's a good group 'round the campfire. Enjoy!