Martin Hellberg
Martin Hellberg( also known as Martin Heinrich, January 31, 1905 – October 31, 1999) was a German actor, director and writer.
Martin Grabmann
Martin Grabmann (5 January 1875 – 9 January 1949) was a German Catholic priest, medievalist and historian of theology and philosophy.
He was a pioneer of the history of medieval philosophy and has been called "the greatest Catholic scholar of his time."
Richard Steinmetz
Richard Steinmetz( born February 1, 1959 in Chicago, Illinois) is an American actor, best known for his role as Martin Fitzgerald on the now- defunct NBC daytime soap opera" Passions".
Harold Seidman
Harold Seidman( 1911–2002) was an American political scientist who is best known for a classic work in government studies and public administration—, now in its fifth edition.
He was a well- known expert in Washington DC bureaucratic politics and was particularly expert in the organization of government corporations.
Seidman attended Brown University for both his Bachelors( 1934) and a master's degrees( 1935).
For a time, Seidman worked on the editorial staff of the magazine," The Nation".
In 1943, he completed a Ph.D. at Yale University, where he was in the political science department with Dwight Waldo as a colleague.
Seidman was a prolific writer.
Between 1930 and 1984, he wrote many articles and books considered important in the field of public administration.
Seidman ended his career in public service and began teaching as a Professor in the Political Science department at the University of Connecticut where he taught from 1971- 1984.
His collected papers are archived at the University of Connecticut.
Seidman then taught at Johns Hopkins University Center for the Study of American Government in Washington, DC until his death.
Martin of Opava
Martin of Opava, O.P.( died 1278) also known as Martin of Poland, was a 13th- century Dominican friar, bishop and chronicler.
Matar Fall
Matar Fall, also known as Martin Fall( born March 18, 1982 in Toulon, France) is a French- born Senegalese professional football player currently playing in French league CFA 2 for Sporting Toulon Var.
His real name is Matar, but it was distorted by journalists and fans as Martin for so long that he is known as" man with two first names".
Martin Duke
Martin F. Duke( 1867–1898) was a pitcher in Major League Baseball for the 1891 Washington Statesmen.
Duke was born as Martin Duck in 1867.
William Hickey (writer)
Reverend William Hickey, also known as Martin Doyle( 1787 – 24 October 1875) was an Irish writer and philanthropist.
Leonard Proxauf
Leonard Proxauf( born November 27, 1995) is an Austrian actor, best known for his role as Martin in the film" The White Ribbon".
Martin Neyland
Martin Neyland( 29 September 1877 – 1947), sometimes known as Martin Nalan, was an English professional football forward who played in the Football League for Bolton Wanderers.

Question: Does Harold Seidman have the same nationality as Martin Grabmann?
Answer: no