Hi John,   Sorry that this letter is not a match.  I do not know where Burnalick/Adare is, or if it is a place., it is printed at the top of the letter, like an address   I do not have an envelope with the letter.   My greatgrandmother was Winifred Kavanagh, born in CoSigo, Ireland.   There are many Winifred's when you are researching   Have you tried the Kavanagh/Cavanagh website,  It has a lot of research avenues and people that can help with questions,   Goodluck and Best Wishes  Judy Witherwax