Debby, you are more likely to get an answer if you are specific about what you know - names and dates. What date did Robert Looney go to America? When was he born? Who were his parents? If you don't know these names and dates you first need to research in America to find out as much as possible about the first Looney who left the IoM, and then post these details on the board.
Your message is more likely to be noticed if you write it under "Post New Message" (top of board) rather than replying to another message, unless you are answering someone on the same topic. Once someone answers, then you "Post Response" to keep the thread together.
Sue