Old Believers of Riga saluted Emperor Alexander III
Nikolay Preobrazhensky (1937) – a teacher of sports at the Riga 10th Secondary School from 1958 to 2009, multiple champion of Latvia in triple jump, referee of All-Union category. >>
Vasily Preobrazhensky (1897-1941) – a teacher and public figure. >>
Sergey Prutchenko (1868-1920?) – a trustee of the Riga Educational district. >>