I search Irishgenealogy.ie, a new, free, online database. I found several rcds for Patrick Sheehy, one of which is shown below:
Diocese of KERRY, Parish of DINGLE R.C. Baptism of PATRICK SHEEHY of BALLYRISTEEN on 6 March 1849 Name PATRICK SHEEHY Date of Birth 6 March 1849 (Based on other date information) Address BALLYRISTEEN Father JOHN SHEEHY Mother CATHERINE AHEARN Further details in the record Child Denomination RC Father Occupation NR Sponsor 1 PATRICK AHEARN Sponsor 1 Address NR Sponsor 2 MARY SHEEHY Sponsor 2 Address NR Priest NR
Hope this points the way to your finding your ancestor.