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==Academic career==

==Academic career==

In 1955, he began his professorship at LSU in [[Baton Rouge]], where he specialized in the history of the American West, with emphasis on the life of [[William Clark]], partner of [[Meriwether Lewis]] in the 1804-1806 Corps of Discovery along the [[Missouri River]] to the Pacific Coast. At LSU, Loos was a graduate advisor and taught the introductory seminar on historical methods for all first-year graduate students in history.<ref name=obit/>

In 1955, he began his professorship at LSU in [[Baton Rouge]], where he specialized in the history of the American West, with emphasis on the life of [[William Clark]], partner of [[Meriwether Lewis]] in the 1804-1806 Corps of Discovery, following the [[Missouri River]] to the Pacific Coast. Loos' 511-page study, ''William Clark's Part in the Preparation of the Lewis and Clark Expedition'' was published in 1954 by the Missouri Historical Society.<ref>{{cite book|url=http://books.google.com/books/about/William_Clark_s_part_in_the_preparation.html?id=cS31GwAACAAJ|title=William Clark's Part in the Preparation of the Lewis and Clark Expedition|publisher=Missouri Historical Society|accessdate=October 3, 2011}}</ref>In 1964, Loos published a six-page article on Lewis and Clark, "They Opened the Door to the West", suitable as a lecture guide.<ref>{{cite web|url=http://books.google.com/books/about/They_opened_the_door_to_the_west.html?id=n-oacgAACAAJ|title="They Opened the Door to the West"|publisher=books.google.com|accessdate=October 1, 2011}}</ref>

For a quarter century, Loos was the chairman of the Department of History and also an interim dean of the College of Arts and Sciences. In 1983, he was named an LSU Alumni Professor in recognition of his scholarship. On retirement, he became professor emeritus. Loos spoke before various organizations, including the Louisiana Historical Association, of which he was the president in 1976,<ref>{{cite web|url=http://www.lahistory.org/site8.php|title=Presidents of the Louisiana Historical Association|publisher=lahistory.org|accessdate=October 1, 2011}}</ref> and the Organization of American Historians.<ref name=obit/>  

Loos's books include ''The American Presidents'' (1986), with co-authors Tracy Irons-Georges and Frank Northern Magill, and ''Great Events from History: North American Series, 1895-1955'', the latter also co-authored by Frank Magill.<ref>{{cite web|

At LSU, Loos was a graduate advisor and taught the introductory seminar on historical methods for all first-year graduate students in history.<ref name=obit/>For a quarter century, he was the chairman of the Department of History and also an interim dean of the College of Arts and Sciences. In 1983, he was named an LSU Alumni Professor in recognition of his scholarship. On retirement, he became professor emeritus. Loos spoke before various organizations, including the Louisiana Historical Association, of which he was the president in 1976,<ref>{{cite web|url=http://www.lahistory.org/site8.php|title=Presidents of the Louisiana Historical Association|publisher=lahistory.org|accessdate=October 1, 2011}}</ref> and the Organization of American Historians.<ref name=obit/>

url=http://www.bookfinder.com/author/john-l-loos/|title=John L. Loos|publisher=Salem Press|accessdate=October 1, 2011}}</ref>In 1964, Loos published a six-page article on Lewis and Clark, "They Opened the Door to the West", suitable as a lecture guide.<ref>{{cite web|url=http://books.google.com/books/about/They_opened_the_door_to_the_west.html?id=n-oacgAACAAJ|title="They Opened the Door to the West"|publisher=books.google.com|accessdate=October 1, 2011}}</ref>In 1959, the LSU Press published Loos's ''Oil on Stream! A History of Interstate Oil Pipe Line Company, 1909-. 1959.''<ref>{{cite web|url=http://www.jstor.org/pss/3101402|title=''Oil on Stream!''|publisher=jstor.org|accessdate=October 2, 2011}}</ref>

 

Other books by Loos include ''The American Presidents'' (1986), with co-authors Tracy Irons-Georges and Frank Northern Magill, and ''Great Events from History: North American Series, 1895-1955'', the latter also co-authored by Frank Magill.<ref>{{cite web|

url=http://www.bookfinder.com/author/john-l-loos/|title=John L. Loos|publisher=Salem Press|accessdate=October 1, 2011}}</ref>In 1959, the LSU Press published Loos's ''Oil on Stream! A History of Interstate Oil Pipe Line Company, 1909-1959.''<ref>{{cite web|url=http://www.jstor.org/pss/3101402|title=''Oil on Stream!''|publisher=jstor.org|accessdate=October 2, 2011}}</ref>

Loos died at the age of ninety-three at a nursing home in Lafayette, Louisiana, where he had relocated in his final years. Memorial services  were to be held on October 2 at University [[Presbyterian]] Church in Baton Rouge, where Loos had been an active member for more than fifty years. Interment was to follow on October 4 at Harvard Cemetery in Harvard, Nebraska. Loos was survived by his wife, the former Helen Nunn; his son and daughter-in-law, Peter J. and Elizabeth S. Loos; daughter, Katherine M. Loos, and four grandchildren.<ref name=obit/>

Loos died at the age of ninety-three at a nursing home in Lafayette, Louisiana, where he had relocated in his final years. Memorial services  were to be held on October 2 at University [[Presbyterian]] Church in Baton Rouge, where Loos had been an active member for more than fifty years. Interment was to follow on October 4 at Harvard Cemetery in Harvard, Nebraska. Loos was survived by his wife, the former Helen Nunn; his son and daughter-in-law, Peter J. and Elizabeth S. Loos; daughter, Katherine M. Loos, and four grandchildren.<ref name=obit/>

In 2005, LSU launched the John L. Loos Professorship in History. The first recipient was Professor David Culbert, a historian of film and media.<ref>{{cite web|url=http://www.lsu.com/unv002.nsf/(NoteID)/F2DAD689C5F662E1862570B900546C11?OpenDocument|title=David Culbert named first John Loos Professorship in History, November 14, 2005|publisher=lsu.com|accessdate=October 1, 2011}}</ref>

In 2005, LSU launched the John L. Loos Professorship in History. The first recipient is David Culbert, an historian of film and media.<ref>{{cite web|url=http://www.lsu.com/unv002.nsf/(NoteID)/F2DAD689C5F662E1862570B900546C11?OpenDocument|title=David Culbert named first John Loos Professorship in History, November 14, 2005|publisher=lsu.com|accessdate=October 1, 2011}}</ref>