Hi Torrie

Have you tried Searching the 1911 Census Returns for Dublin which you can search for free online at The Irish National Archives 1911 Census Returns just Google the Same and it should come up.

Remember to add them to Favourites as in the coming months Dublin 1901 will be coming online also free to search and take any Returns That are of use to you. you will find Many returns for Simpsons but while searching remember to try using varients of a name to look for people such as Eliza For Elizabeth or Annie for anne sometimes it can be rewarding anyway let me know if it is of help.

All the Countys of Ireland will be Available Soon to Search.
Both 1901 and 1911 and Will be free of charge Because of the fact that most of Irelands Earlier Censuses were Destroyed during the civil war in Ireland.

Regards Patrick