Question: Who is the nephew of Helmuth Karl Bernhard who was once involved with the Moltke Nunataks?

Context paragraphs:
Freya von Moltke: Countess Freya von Moltke (29 March 1911 – 1 January 2010) was a participant in the anti-Nazi resistance group, the Kreisau Circle, with her husband, Helmuth James Graf von Moltke.  During World War II, her husband acted to subvert German human-rights abuses of people in territories occupied by Germany and became a founding member of the Kreisau Circle, whose members opposed the government of Adolf Hitler.

Moltke Nunataks: The Moltke Nunataks ( ) are a chain of north–south trending nunataks close to the northeastern end of the Filchner Ice Shelf, Antarctica.  One nunatak was first roughly mapped and named "Moltke Nunatak" by the Second German Antarctic Expedition of 1911–12 under Wilhelm Filchner.  He named it for General Helmuth von Moltke, Chief of the German General Staff and Secretary of State for Home Affairs.  Surveys during the mid-1950s by British, Argentine and United States expeditions indicate that a group of four or five nunataks exist in the area.

Marty Nunataks: The Marty Nunataks ( ) are a group comprising about six nunataks in the western part of the Britannia Range, Antarctica.  The group lies midway between Haven Mountain and Vantage Hill and extends east–west for 7.5 nmi .  The nunataks rise to over 2000 m , with local relief on the order of 200 m .  They are named after Jerry W. Marty, who was involved in Antarctica from 1969, first as a construction worker at South Pole Station, and later, from 1995–2001, was engaged in on-site contract support to the Office of Polar Programs, National Science Foundation, as a Construction/Operations and Maintenance Coordinator for South Pole Station modernization.

Helmuth James Graf von Moltke: Helmuth James Graf von Moltke (11 March 1907 – 23 January 1945) was a German jurist who, as a draftee in the German Abwehr, acted to subvert German human-rights abuses of people in territories occupied by Germany during World War II and subsequently became a founding member of the Kreisau Circle resistance group, whose members opposed the government of Adolf Hitler in Nazi Germany.  He participated in their discussions about the prospects for a Germany based on moral and democratic principles after Hitler.  The Nazi government executed von Moltke for treason for his participation in these discussions.

Helmuth von Moltke the Younger: Helmuth Johann Ludwig von Moltke (] ; 23 May 1848 – 18 June 1916), also known as Moltke the Younger, was a nephew of "Generalfeldmarschall" (Field Marshal) Helmuth Karl Bernhard von Moltke and served as the Chief of the German General Staff from 1906 to 1914.  The two are often differentiated as "Moltke the Elder" and "Moltke the Younger".

Helmuth von Moltke the Elder: Helmuth Karl Bernhard Graf von Moltke (26 October 1800, Parchim, Mecklenburg-Schwerin – 24 April 1891, Berlin) was a German Field Marshal.  The chief of staff of the Prussian Army for thirty years, he is regarded as the creator of a new, more modern method of directing armies in the field.  He is often referred to as Moltke the Elder to distinguish him from his nephew Helmuth Johann Ludwig von Moltke, who commanded the German Army at the outbreak of World War I.

Moltke Bridge: Moltke Bridge is a bridge over the Spree River in Berlin, Germany.  Completed in 1891, it connects Alt-Moabit near the main railway station on the north bank to Willy-Brandt-Straße and the Chancellery on the south bank.  The bridge is named after Field Marshal Helmuth von Moltke the Elder (1800–1891), chief of staff of the Prussian Army for thirty years.  Moltke died just before the bridge's completion and it was inaugurated by his funeral cortege.  The bridge has three crossed arches spanning the Spree made from red Main sandstone, decorated with statues of Johannes Boesen, Carl Piper and Carl Begas.

SMS Moltke: SMS "Moltke"  was the lead ship of the "Moltke"-class battlecruiser s of the German Imperial Navy, named after the 19th-century German Field Marshal Helmuth von Moltke.  Commissioned on 30 September 1911, the ship was the second battlecruiser commissioned into the Imperial Navy.

Kreisau Circle: The Kreisau Circle (German: "Kreisauer Kreis") (1940–1944) was a group of about twenty-five German dissidents led by Helmuth James Graf von Moltke, who met at his estate in the rural town of Kreisau, Silesia.  The circle was composed of men and a few women from a variety of backgrounds, including those of noble descent, devout Protestants and Catholics, professionals, socialists, and conservatives.  Despite their differences, the members of the Kreisau Circle found common interest in their opposition to Hitler's Nazi regime on both moral and religious grounds.  At their meetings, the circle discussed how they would reorganize the German government after the end of the Third Reich.  Although the circle did not promote violent overthrow of the regime, their planning was considered by the Nazis to be treasonous as it rested on the assumption that Germany would lose the war.  The group began to falter after Helmuth von Moltke was arrested by the Gestapo in January 1944 and eventually came to an end when most of its members were arrested following Claus von Stauffenberg's attempt on Hitler's life on July 20, 1944.

SMS Moltke (1877): SMS "Moltke" was a "Bismarck"-class corvette built for the German Imperial Navy ("Kaiserliche Marine") in the late 1870s.  The ship was named after Prussian Field Marshal Helmuth von Moltke the Elder and served as training vessel for cadets and midshipmen and made numerous voyages abroad.

Supporting paragraphs: Moltke Nunataks Helmuth von Moltke the Younger
Answer: Moltke the Younger