Wilhelm Joseph von Wasielewski
Wilhelm Joseph von Wasielewski( 17 June 1822 – 13 December 1896) was a German violinist, conductor, and musicologist.
Otto II, Count of Waldeck
Otto II, Count of Waldeck( before 1307 – 1369) was Count of Waldeck from 1344 until his death.
Adolf II of Waldeck
Adolf II of Waldeck( c. 1250 – 13 December 1302) was count of Waldeck from 1270 to 1276 and prince- bishop of Liège from 1301 to 1302.
Count Ludwig Joseph von Boos-Waldeck
Count Ludwig Joseph von Boos- Waldeck( 26 November 1798 – 1 October 1880) was a German noble who promoted the settling of Texas by Germans.
Boos -Waldeck was born in Koblenz as the son of Count Clemens von Boos zu Waldeck( 1773- 1842) und" Freiin Johanna von Bibra"( 1774- 1856).
He descended from a line of Rhenish knights and nobles dating back to the 13th century.
Boos- Waldeck married about 1827 Freiin Henriette von Wessenberg- Ampringen( 1807- 1856), the daughter of Johann Freiherr von Wessenberg- Ampringen( 1773- 1858).
He was the uncle of the composer Victor von Boos zu Waldeck( 1840- 1916).
In April 1842 Boos- Waldeck and a few other nobles met at Biebrich on the Rhine, near Mainz, to organize a society, which they called the Adelsverein, to promote German immigration to Texas.
In 1843 Boos- Waldeck bought and developed the Nassau Plantation near Round Top, Texas on behalf of the" Adelsverein".
In addition to his native German, he spoke Spanish and English when Texas came under Mexican and U.S. rule.
He died in Aschaffenburg, Kingdom of Bavaria.
Joseph von Maltzahn
Joseph von Maltzahn( born 2 August 1978 in Oxford, Oxfordshire) is a British rower and Boat Race winner.
Lujo Brentano
Ludwig Joseph Brentano (18 December 1844 – 9 September 1931) was an eminent German economist and social reformer.
Henry VII, Count of Waldeck
Henry VII of Waldeck( died after 1442) was Count of Waldeck from 1397 until his death, after which he acted several times as bailiff for the Electorate of Mainz in Upper and Lower Hesse.
Joseph von Rudolphi
Joseph von Rudolphi, or Joseph von Rudolfi,(* 16 May 1666 as" Wolfgang Ernst"; † 7 March 1740 in Saint Gall) was from 1717 onwards abbot of the Abbey of Saint Gall and kitchen master.
Robert L. Metcalf
Robert Lee Metcalf( November 13, 1916 – November 11, 1998) was an American entomologist, environmental toxicologist, and insect chemical ecologist.
Metcalf was noted for making environmentally safe pest control achievable.
Metcalf was a member of the National Academy of Sciences, a fellow of the American Academy of Arts and Sciences, a member of National Research Council, a fellow and president of the Entomological Society of America.
He was a member of Environmental Protection Agency's Pesticide Advisory Panel.
The National Center for Biotechnology Information called Metcalf" one of the leading entomologists of the 20th century".
The National Academies Press called him the twentieth century most influential entomologist.
The University of Florida called him" a brilliant scientist and educator".
Anton Joseph von Prenner
Anton Joseph von Prenner( 1683 – 1761) was an Austrian painter and engraver.

Question: Were Robert L. Metcalf and Count Ludwig Joseph Von Boos-Waldeck from the same country?
Answer: no