James Hopkins family

I am searching for information on ancestors of James and Margaret Hopkins.  James was born in Ireland (I suspect County Wicklow) in 1807 and listed himself as Church of Ireland in an 1851 Canadian census.  He and Margaret emigrated to Canada through Montreal sometime in the 1830s.  They ox-carted to the London-St. Thomas area in Ontario and farmed a 100 acre area.  Verbal indications point to them travelling from Ireland to Canada with at least one child.They had eight children.

Mary, b. Feb. 5 1833; Sarah Jane, b. Aug. 1, 1834; Julianne, b. Mar.17, 1836; Jemima, b. Jun 5, 1837; Charles Edward, b. Mar. 15 1839; Benjemin, b. Aug. 9, 1841; Margaret,b. Jun 9, 1844; John, b. Aug 9, 1846. 

I recently had DNA testing and discovered an American and Canadian male Hopkins contact.  From those contacts, it is believed that James Hopkins had a brother Richard Hopkins b. 1811.  As well, it is believed that the family originated from a Townland south of Dublin called Corndog which is supposed to be southeast of the village of Moyne.

I will be arriving in Dublin September 3 and intend to rent a car and drive to the Glendalough area where i have a reservation for 3 nights before heading back to Dublin.  I then will be heading for London on September 8.

I would appreciate any information on the above search for my Irish roots.

John Hopkins, john@jhcoach.ca