The family of Henry and Johanna Dierolf left Germany and emigrated to the United States, arriving together on March 27, 1880. They settled in Luzerne County, Pennsylvania.
Sources
"Find A Grave Index," database, FamilySearch (https://familysearch.org/pal:/MM9.1.1/QVGG-TTKH : accessed 20 January 2016), J. Adam Derolf, ; Burial, Du Bois, Clearfield, Pennsylvania, United States of America, Morningside Cemetery; citing record ID 123468233, Find a Grave, http://www.findagrave.com.
"United States Census, 1920," database with images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MFRJ-DZS : accessed 20 January 2016), Adam Derolf, Du Bois Ward 3, Clearfield, Pennsylvania, United States; citing sheet 4B, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,821,553.
"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MG4H-WKH : accessed 20 January 2016), Adam Gerolf, Du Bois Ward 1, Clearfield, Pennsylvania, United States; citing enumeration district (ED) ED 74, sheet 9A, NARA microfilm publication T624 (Washington, D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,375,344.
"Pennsylvania, County Marriages, 1885-1950," database with images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/VF9D-9VH : accessed 20 January 2016), Adam Derolf and Minnie Bendig, 15 Oct 1901; citing Marriage, Pennsylvania, county courthouses, Pennsylvania; FHL microfilm 955,886.
"United States Census, 1880," database with images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MWNH-CLN : accessed 20 January 2016), Adam Dearlof in household of Henry Dearlof, Wilkes Barre, Luzerne, Pennsylvania, United States; citing enumeration district ED 114, sheet 564C, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d.), roll 1149; FHL microfilm 1,255,149.
"New York Passenger Lists, 1820-1891," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QVSK-VSWC : 12 March 2018), Adam Dirolf, 1880; citing Immigration, New York City, New York, United States, NARA microfilm publication M237 (Washington, D.C.: National Archives and Records Administration, n.d.), FHL microfilm 295,787.
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