For Dooey there are 18 on Yasni with different names.
Among the most common last names on Yasni Dooey is on position 4509.
Dooey is a simplified version of the Irish name O'Dubhthaigh (which is pronounced O'Doohey). In Irish, it means black haired one, and is also the same as Duffy in Irish. I think the simplified version came from Irish immigrants entering America through Ellis Island and the Irish spellings of a lot of immigrants were simplified to make the names easier understood.
(Sent from: Laurence Dooey.)