Dear Dorothy,
I wonder if you have checked out Griffiths Valuation 1847 to 1864. It shows a Charles Ryan as a farmer and I think 1850 is the date. Would he have been your Charles' father? http://www.askaboutireland.ie/griffith-valuation/index.xml?action=doName...
Then you have the 1901 Census: http://www.census.nationalarchives.ie/search/results.jsp?census_year=190...
And the 1911 Census: http://www.census.nationalarchives.ie/search/results.jsp?census_year=191... You should be able to find the couple who did not leave until 1922 in both of the 1901 & 1911 census.
Hope this is of some help. Let me know if I can help further.
Mozlink