You'll find these newspapers on microfilm in the Genealogy Room at Merrillville Branch.
Calumet Press (Highland) 1971 - 1993
Calumet World 1924-1928
Central Labor Union News 1919 - 1920
Chesterton Tribune Jan - Dec 1967
Chicago Tribune 1971 - 2008
Commonwealth Jan 1930 - June 1932
Crown Point Register 1857 - 1966
Dyer Sun Journal 1969 - 1983
East Gary Times 1927-1928
Gary Daily Info 1968 and 1971
Gary Daily News 1908-1901
Gary Daily Tribune 1908-1921
Gary Info 1968 - 1971
Gary Times/Tolleston News 1944 - 1950
Gary Tribune (weekly)1907-1912
Gary Life / Truth 1927-1928
Gary Morning Journal 1963-1976
Gary Sun 1923-1929
Griffith-Calumet Weekly News (Ross, Munster, Highland) 1933 - 1947
Griffith Sun Journal 1963-1976
Hammond Journal 1959-1962
Hammond Scene 1980-1981
Hammond Times see Times (Hammond)
Highland Journal 1959-1983
Hobart Chronical 2003-2006
Hobart Gazette 1889-2003
Hobart Index/Commonwealth 1935 - 1939
Hobart News 1910-1930
Indiana Courier Sept 1914 - Nov 1914
Inland Steelmaker 1969-1997
Lake County Democrat Sept 1909 - Jan 1910
Lake County Globe Ledger 1953 - 1956 & 1980 - 1998
Lake County News 1893-1918
Lake County Star (Crown Point) 1882-current
Lowell Enterprise Dec 1878 - Sept 1879
Lowell Star May 1872 - Dec 1874 ; Jan 1875 - May 1877
Lowell Tribune 1916-current
Merrillville Herald 1970-2000
Munster Journal 1960-1976
New York Times 1851 - 2008
Northern Indianian 1906 - 1909
Northwest Indiana Catholic 1987-1996
Porter County Herald (Hebron) 1944 - 1950
Post Tribune (Gary) 1921 - 2018 (new issues through online database)
Region Journal 1955-1958
Rekord (Polish Weekly) Jan - Nov 1929
Southeast Calumet News 1930 - 1932
Sun Journal 1955 -1983
Times (Hammond) 1906-present
Wall Street Journal 1975 - 2003 and 2007-2008