Simplify the following text for a Grade 5 native English-speaking person.
Original: In 1903 she married John William Thompson at Twickenham Parish Church , with whom she had a daughter , Winifred Grace ( 1903 ) and two sons , Henry Basil ( 1909 ) and Peter Redmond ( 1918 ) ( later lost at sea in 1941 ) .
Simplified: In 1903 she married John William Thompson , with whom she had two sons and a daughter .