Simplify the following text for a Grade 6 native English-speaking person.
Original: However , the 1910 census recorded her birthday as April 15 , 1894 , a date that appears on all subsequent documents and was observed by the entire Smith family .
Simplified: In the census in 1910 , her sister , Viola Smith said that Bessie 's birthday was April 15 , 1894 . That is the date that is on all later documents , and was the one that Smith used .