Penny, you might look in Templemore in Tipperary, Ireland. My DANNs migrated to London, Ontario, Canada in 1823/25 and settled there. The craftsmen in the family were among other craftsmen from the Templemore area who were recruited by TALCOTT to settle the area. Only four siblings migrated to Canada. I've long suspected there were more DANNs who stayed or migrated elsewhere, especially since my ggg-grandparents, John DANN (1765-?) and Elizabeth WHITE (1768-1852) died in Tipperary.
I've wanted to explore guild records as Templemore was a center for the guilds and craftsmen (mine were Masons also), which made their skills especially valuable in new settlements.
Surnames of those who married these early DANNs and their children are RAWLINS, HOWARD, WHITE, ELIOTT, GUEST, O'NEIL, and BURNETT. Recurring given names are Joseph, John, George, William, Anne, Jane, Joyce, Robert, Mary, Elizabeth, Edward, Sarah, and Susan. One of the grandchildren was named Alexander.