Answering this because it took me a few days to figure it out; hopefully this will help some other diligent soul who is struggling to process remote JSON data via JSONP JQUERY .ajax processing.
The key issue is to match the format of the function on the server side, in the .json file, with the processing function in the client-side webpage. Your data format on the server side must match the function on the client side:
For example, server file "ticker.json" should look like this:
"msgOne": "Remote One",
"msgTwo": "Remote Two",
"msgThree": "Remote Three"
Your client-side web-page functions should look like this:
}); // Close Ajax Function
var tickerOne = document.getElementById("test");
With the client side function above, the output on the webpage in the "test" div is "Remote Two"
Pretty cool, huh?