1891 births

Karl Dönitz (sometimes spelled Doenitz; German: [ˈdøːnɪts] ; 16 September 1891 – 24 December 1980) was a German admiral who briefly succeeded Adolf Hitler as head of state in May 1945, holding the position until the dissolution of the Flensburg Government following Germany's unconditional surrender to the Allies days later. As Supreme Commander of the Navy beginning in 1943, he played a major role in the naval history of World War II.
He began his career in the Imperial German Navy before World War I. In 1918, he was commanding UB-68, and was taken prisoner of war by British forces. As commander of UB-68, he attacked a convoy in the Mediterranean while on patrol near Malta. Sinking one ship before the rest of the convoy outran his U-boat, Dönitz began to formulate the concept of U-boats operating in attack groups Rudeltaktik (German for "pack tactic", commonly called a "wolfpack") for greater efficiency, rather than operating independently.By the start of the Second World War, Dönitz was supreme commander of the Kriegsmarine's U-boat arm (Befehlshaber der Unterseeboote (BdU)). In January 1943, Dönitz achieved the rank of Großadmiral (grand admiral) and replaced Grand Admiral Erich Raeder as Commander-in-Chief of the Navy. Dönitz was the main enemy of Allied naval forces in the Battle of the Atlantic. From 1939 to 1943 the U-boats fought effectively but lost the initiative from May 1943. Dönitz ordered his submarines into battle until 1945 to relieve the pressure on other branches of the Wehrmacht (armed forces). 648 U-boats were lost—429 with no survivors. Furthermore, of these, 215 were lost on their first patrol. Around 30,000 of the 40,000 men who served in U-boats perished.On 30 April 1945, after the suicide of Adolf Hitler and in accordance with his last will and testament, Dönitz was named Hitler's successor as head of state in what became known as the Goebbels cabinet after his second-in-command, Joseph Goebbels, until Goebbels' suicide led to Dönitz's cabinet being reformed into the Flensburg Government instead. On 7 May 1945, he ordered Alfred Jodl, Chief of Operations Staff of the Oberkommando der Wehrmacht (OKW), to sign the German instruments of surrender in Reims, France, formally ending the War in Europe. Dönitz remained as head of state with the titles of President of Germany and Supreme Commander of the Armed Forces until his cabinet was dissolved by the Allied powers on 23 May de facto and on 5 June de jure.
By his own admission, Dönitz was a dedicated Nazi and supporter of Hitler. Following the war, he was indicted as a major war criminal at the Nuremberg trials on three counts: conspiracy to commit crimes against peace, war crimes, and crimes against humanity; planning, initiating, and waging wars of aggression; and crimes against the laws of war. He was found not guilty of committing crimes against humanity, but guilty of committing crimes against peace and war crimes against the laws of war. He was sentenced to ten years' imprisonment; after his release, he lived in a village near Hamburg until his death in 1980.

Otto Moritz Walter Model (IPA: [ˈmoːdəl]; 24 January 1891 – 21 April 1945) was a German Generalfeldmarschall during World War II. Although he was a hard-driving, aggressive panzer commander early in the war, Model became best known as a practitioner of defensive warfare. His relative success as commander of the Ninth Army in the battles of 1941–1942 determined his future career path.
Model first came to Hitler's attention before World War II, but their relationship did not become especially close until 1942. His tenacious style of fighting and loyalty to the Nazi regime won him plaudits from Hitler, who considered him one of his best field commanders and repeatedly sent him to salvage apparently desperate situations on the Eastern Front as commander of Army Group North, Army Group North Ukraine and
Army Group Centre.
In August 1944 Model was sent to the Western Front as commander of OB West and Army Group B. His relationship with Hitler broke down by the end of the war after the German defeat at the Battle of the Bulge. In the aftermath of the defeat of Army Group B and its encirclement in the Ruhr Pocket, Model took his own life on 21 April 1945.

Johannes Streich (16 April 1891 – 20 August 1977) was a German general in the Wehrmacht during World War II who commanded the 5th Light Division during the early stages of the North African Campaign. Sacked for his poor performance during the Siege of Tobruk, he later briefly commanded the 16th Motorised Infantry Division during the advance on Moscow. A veteran of World War I, he was also a recipient of the Knight's Cross of the Iron Cross.

Albert Séguin (8 March 1891 – 29 May 1948) was a French gymnast and Olympic champion. He competed at the 1924 Summer Olympics, where he received a gold medal in sidehorse vault, and silver medals in rope climbing and in team combined exercises.

Henry George (18 February 1891 – 6 January 1976) was a Belgian track cycling racer who competed in the 1920 Summer Olympics.During the First World War, Henry George served in the Belgian army and was part of the Belgian Expeditionary Corps in Russia, fighting on the Eastern Front along with Imperial Russian forces.In 1920 George won the gold medal in the 50 kilometres competition.

Georges Cuisenaire (1891–1975), also known as Emile-Georges Cuisenaire, was a Belgian teacher who invented Cuisenaire rods, a mathematics teaching aid.

Erich Marcks (6 June 1891 – 12 June 1944) was a German general in the Wehrmacht during World War II. He authored the first draft of the operational plan, Operation Draft East, for Operation Barbarossa, the invasion of the Soviet Union, advocating what was later known as A-A line as the goal for the Wehrmacht to achieve, within nine to seventeen weeks. Marcks studied philosophy in Freiburg in 1909.

Franz Sedlacek (21 January 1891 – 1945) was an Austrian painter who belonged to the tradition known as "New Objectivity" ("neue Sachlichkeit"), an artistic movement similar to Magical Realism. At the end of the Second World War he "disappeared" as a soldier of the Wehrmacht near Toruń, Poland. He was declared missing on February 1, 1945 and pronounced dead in 1972.

Helmut Ruhemann CBE, (b. 1891 – d. 1973) was a German painting conservator and restorer, considered the pre-eminent of his profession during his lifetime.

Hermann Werner Siemens (August 20, 1891 (Charlottenberg) -1969) was a German dermatologist who first described multiple skin diseases and was one of the inventors of the twin study. Siemens' work in twin studies is influential in modern genetics and is used to address the environmental and genetic impacts upon traits. Siemens was involved in racial hygiene and affiliated with the Nazi Party.