Interesting www.fatima.org have her death on 2/14...
"R.I.P.
Sister Lucy of Fatima
Sister Lucy, the last surviving seer of Fatima, passed from this life on February 14, 2004 at the age of 97 years. Our Lady's Fatima Apostolate deeply mourns her passing along with many millions of other faithful friends of Our Lady. We take special comfort in remembering that Our Blessed Lady promised Sister Lucy that they would meet again in Heaven. We urge you to join us in prayer for the repose of Sister Lucy's soul and for the continuation of the work to which she dedicated her life. Please check back soon for more on the passing of Sister Lucy."
It was the 13th in America, anyway, because the 1st reports were out around 9 or 10 p.m. last night.