People death day 1957-04-20 (First 4 people) - Page 0

Konrad Knopp

Konrad Knopp

German mathematician

Fructuoso Rodríguez Pérez

Fructuoso Rodríguez Pérez


Anne Boyle Gunn

Anne Boyle Gunn


Alicia Madeline Isobel Gifford-Moore

Alicia Madeline Isobel Gifford-Moore