I am finally back to doing Pardini family research. I came across a guest list from a family reunion we had many years ago (1985) with the names of family who are decendants from the half-siblings of my Luigi (Louis) Pardini. They may help you make the connection to your Louis. Do you know the names of Louis and Rose's children?? It is possible that one of these people can make that connection.
Also, I came across a box of letters from my grandfather (Luigi's son) and I am hopeful that there may be some info there too. I hope this helps. I am very curious about all this. Let me know if you would rather email me directly. Thanks, Francesca