Hi Kelly,
I have a cousin who has traced our family back to the same Patrick McPeek. Some poking around I have done on Ancestry.com brings up Daniel Lee McPeek as Patrick's father, and Charles McPeek as Daniel's father. I am unable to verify this. These same family trees show all three of them dying in the United States, usually Sussex County, NJ, but Patrick is also sometimes shown as dying in South Carolina in 1780. Again, other than Patrick dying the US (or the colonies, at that time), there is no independent verification of this information. Much of the Ancestry information relies on what people post, and they are often mistaken.
Two years ago my wife and I visited Ireland. I knew Patrick came from County Derry. We visited Derry and had an amazing tour of the city. We also met with a genealogist who was very helpful. He sent us to Tamlaught O'Crilly. There is actually a place near the River Bann known as "Bally MacPeake" which translates as "town of the McPeeks." There is a Bally MacPeake road--actually an upper and lower version. We found (with the help of a farmer's directions--it's a beautiful, rural area) a cluster of McPeake families living near one another near there (not on the road, and there is no town of McPeakes at this point). We met Patsy McPeake (as you can see, the spelling variations abound) and had a nice chat. I came to realize that showing up there from the US and saying "My name is McPeek, too" is akin to showing up at the Smith household and identifying as a Smith. A fairly common name.
I'm writing this on my lunch hour at work. I have more information and photographs at home. If you're interested in comparing notes, email me at bmcpeek@cox.net. I live in Florida.
Thanks!
Bob McPeek