Personally, I cannot help you with your tree except to advice that you put requests for research on the Genealogy page of the Forum. This page is supplied for members that have suggestions to improve the TribalPages website.
There must be hundreds of Dougherty families in the world. You might get constructive response if you provided, in your request for help, more details of your particular family members. Where, when, etc., born, wed and/or died.