Simplify the following text for a Grade 6 native English-speaking person.
Original: Green was born at Edmonton , London to Frederick and Sarah Patterson ( nÃ e Neall ) , and moved to King 's Lynn in 1920 , after her marriage to Walter Green , a railway worker who died in 1970 after 50 years of marriage .
Simplified: Green was born in London and moved to King 's Lynn in 1920 after her marriage to Walter , a railway worker who died in 1970 .