Samuel William Manthey was a Norwegian jurist and politician.

He was elected to the first session of the Parliament of Norway in 1814, representing the constituency of Smaalenenes Amt

Østfold

is a county in southeastern Norway, bordering Akershus and southwestern Sweden , while Buskerud and Vestfold is on the other side of the bay. The seat of the county administration is Sarpsborg, and Fredrikstad is the largest city.Many manufacturing facilities are situated here. Moss and...

. He was a district stipendiary magistrate (sorenskriver) and stipendiary magistrate (byfoged) by profession.

Together with Elisabeth Antonette de Stockfleth (1777–1857) he had the son August Christian Manthey

August Christian Manthey

August Christian Manthey was a Norwegian Minister who held several government posts in the period 1856-1875. He served as Minister of Auditing, Justice, Finance, the Interior, the Navy and the Army, as well as being member of the Council of State Division in Stockholm in different...

 (1811–1880), a notable politician and writer, who married a daughter of Jacob Nielsen. Samuel William Manthey was also the son-in-law of Thomas Rosing de Stockfleth. Another son, Ludvig Johan Carl Manthey (1809–1875), married another daughter of Jacob Nielsen. They had the daughter Bertha Manthey (1867–1947), who married Christian Lous Lange

Christian Lous Lange

Christian Lous Lange was a Norwegian historian, teacher, and political scientist. He was one of the world's foremost exponents of the theory and practice of internationalism....

, and mothered Halvard

Halvard Lange

Halvard Manthey Lange was a Norwegian diplomat, politician and statesman.He became a member of the Norwegian Labour Party in 1927. Two years later, in 1929, he earned a Master of Arts degree...

, Carl Viggo

Carl Viggo Manthey Lange

Carl Viggo Manthey Lange was a Norwegian physician and politician for the Labour Party.He was born in Kristiania as a son of Christian Lous Lange and Bertha Manthey , and brother of August and Halvard Manthey Lange. He enrolled as a student in 1922, and graduated with the cand.med. degre in 1929...

 and August Lange

August Lange

Christian August Manthey Lange was a Norwegian educator, non-fiction writer and cultural attaché.-Personal life:...

.