The National Archives of Ireland have made the 1901 and 1911 census records freely available and searchable online at http://www.census.nationalarchives.ie/. Copies of the original handwritten forms can be downloaded for free.
You can also browse the census records for all Clane townlands:
All property owners in the townland of Clane were identified and published in and around 1853 as part of Griffith’s Valuation. This information can be searched both by name and by location at http://www.askaboutireland.ie/griffith-valuation/index.xml.
There are several cemeteries in and around Clane. Some information on burials from the Friary and Abbey Cemetery are posted online at http://www.interment.net/data/ireland/kildare/clane_abbey/clane.htm.
There are many resources to help those interested in tracing ancestors in Ireland. The Fáilte Ireland Tracing Your Ancestors Booklet introduces many of them.