Wonder if we'r related? :)

I'm not sure when the Mc was added but I've had a terrible time finding my family on any of the usual name search engines.
James:
Gender: Male
Born: 3/6/1828 (Approx)
County of Birth: Down - Town/Village: Castlewellywn
Religious Denomination: Church of Ireland
Marital Status: Married - Date Married: 4/25/1844
Spouse's Name: Margaret McGarety

More information: James was [possibly born March 18th rather than 6th. I have 2 dates listed in the files. Perhaps teh 18th was his christening? His wife Margaret and at least 4 of his brothers sailed for New York "immediately after their wedding". Could mean that day or within a month lol They were married at St Mary's Catholic church in Sunderland co., Durham England. All of this info is copied from a family bible so idk how accurate the dates and spelling are. It says he was born on the Isle of Man. They sailed in late April or early May of 1844. They stayed in New York for several years and then went to Iowa in a covered wagon with their 4 kids. Of course more were born in Iowa.