The above transcription is from Brenda Stubbert's Collection. Brenda learned it from family friend Winston Fitzgerald. Winston had used it for the theme music on his long-running radio show. It is likely American in origin, first appearing in Ryan's Mammoth (1883). There is also an Irish hornpipe setting in G called The Flowing Tide.
The Picnic Reel has been recorded dozens of times ... a few of those include: