HELP!! McCann Family Tree Ireland

Can anyone help me locate my Mccanns family in Irland I believe they are from the Dublin Area, so far I have located :

Andrew Lawrence Mccann born 1872 Irland married in Norwich England 1895 to Elizabeth Disken, He later worked in the theatre with perfoming Dogs
His father was
James Mccann occupation General Dealer

Any help no matter how small much appreciated.