Background
He was born in Asker as a son of painter Kristofer Sinding-Larsen (1873–1948) and Margrethe Volkersen (1880–1951). He was a grandson of Alfred Sinding-Larsen, a nephew of Christian Magnus Sinding-Larsen, Birger Fredrik Sinding-Larsen and Holger Sinding-Larsen, and a first cousin of Knut Martens Sinding-Larsen.
Career
His family moved a lot during his childhood, but he took the examen artium in 1922 in Kristiania. He also took commerce school. In 1927 he graduated from the university with the law degree.
However, he started a career in journalism, and was hired as Copenhagen correspondent for Göteborgs Handelsoch Sjöfartstidning in 1929.
In 1933 he became Oslo correspondent, and also wrote for Oslo-based newspaper Aftenposten. He soon dedicated his career to Aftenposten, and was its Paris correspondent from 1946 to 1949 and Bonn correspondent from 1950 to 1952.
From 1952 to 1953 he was in Zurich. He retired in 1973. Sinding-Larsen was an active fencer, and also chaired the Norwegian Fencing Federation for some time.
He wrote two memoir books
Medical pressekort. Reiser og mennesker (1976) and 1001 dag. Erfaringer fra 40 journalistår (1982).
He died in November 1994 in Oslo.