Ancestors in Northern Ireland looking for family William & Catherine Dunbar

[WTD3]

I am trying to connect my first ancestors who came to  Penn from Northern Ireland. I am thinking maybe Tyrone.  William and Catherine Dunbar sailed I am presuming from Ireland some where around 1730 give or take a couple of years.  William I have found out from his will had two brothers that came over at some point around  that time also, their names Andrew and David.  I can not find a ships list with William & Catherine on it. Also I can not find any information from Ulster or Northern Ireland when they may have married or Catherines family name.  Or William, David or Andrews birth.
Is their anyone out there that may be able to help me?

[Nolan Admin - Glenn Allen Nolen]

I am trying to connect my first ancestors who came to  Penn from Northern Ireland. I am thinking maybe Tyrone.  William and Catherine Dunbar sailed I am presuming from Ireland some where around 1730 give or take a couple of years.  William I have found out from his will had two brothers that came over at some point around  that time also, their names Andrew and David.  I can not find a ships list with William & Catherine on it. Also I can not find any information from Ulster or Northern Ireland when they may have married or Catherines family name.  Or William, David or Andrews birth.
Is their anyone out there that may be able to help me?

Have you tried Ireland Census Records @ http://www.censusfinder.com/ireland.htm

They have quite a few resource links on the right side of the page. Plus, they have county links, also.