Simplify the following text for a Grade 7 native English-speaking person.
Original: He later served as district stipendiary magistrate of SÃ r - Ã sterdal District Court from 1854 to 1869 , then of SolÃ r District Court from 1869 to 1879 .
Simplified: He later worked as a `` district stipendiary magistrate '' of the SÃ r - Ã sterdal District Court from 1854 to 1869 . He later worked at the SolÃ r District Court from 1869 to 1879 .