Garde Browne/Harding Browne

The following people are Irish Browne`

John Browne 1772 married Jane Garde 1811. They had a son William Garde Browne 1814-1877.

Richard Browne c1805 married Lucinda Harding c1830. They had a son Richard Walter Harding Browne 1841-1921.

I am trying to find out if I have any relation to the Brownes of Coolcower or Rockborough in Ireland.

My family tree ends with Richard 1823 son of Allen Brown 1797 and Mary Wiseman.
Thanks to a wonderful person in Ireland I was sent a copy of Allen and Mary` family. Unfortunately Richard is listed as 1818 not 1823.
I live in Canada and I am trying to plug holes while connecting the dots.
Any help any advice would be appreciated.
Denis Brown-prog@kingston.net