| Quellen |
- [S90] FamilySearch, (Kirche Jesu Christi der Heiligen der Letzten Tage).
"New York, Kings County Estate Files, 1866-1923," database with images, FamilySearch (https://familysearch.org/ark:/61903/3:1:S3G9-DJ5S-98?cc=1466356&wc=MPCQ-LL8%3A44954901%2C126828301%2C126885401 : 21 May 2014), Kings County > Lu > Ludwig, Philipp (1897) > image 3 of 13; Surrogate Court, Brooklyn.
- [S503] Find a grave.
Find a Grave, Datenbank und Bilder (https://de.findagrave.com/memorial/172090380/julia-kummer: aufgerufen 22 Januar 2023), Gedenkstättenseite für Julia Ludwig Kummer (17 Okt 1881–28 Nov 1944), Gedenkstätten-ID bei Find a Grave 172090380, zitierend The Evergreens Cemetery, Brooklyn, Kings County (Brooklyn), New York, USA; Verwaltet von AnonymousLMB (Mitwirkender 48290351).
- [S90] FamilySearch, (Kirche Jesu Christi der Heiligen der Letzten Tage).
"New York State Census, 1892," database with images, FamilySearch (https://familysearch.org/ark:/61903/3:1:S3HT-DYMS-3MR?cc=1529100&wc=3FGD-J47%3A69522401%2C69910001 : 22 May 2015), Kings > Brooklyn, Ward 18, E.D. 11 > image 9 of 13; county offices, New York.
- [S90] FamilySearch, (Kirche Jesu Christi der Heiligen der Letzten Tage).
"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/3:1:S3HT-642S-XLL?cc=1325221&wc=9B74-N3J%3A1030551901%2C1034039901%2C1035539101 : 5 August 2014), New York > Kings > ED 450 Borough of Brooklyn, Election District 21 New York City Ward 25 > image 36 of 44; citing NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, n.d.).
- [S90] FamilySearch, (Kirche Jesu Christi der Heiligen der Letzten Tage).
"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/3:1:33SQ-GRK9-99W9?cc=1727033&wc=QZZ4-JGQ%3A133641301%2C137724901%2C142449701%2C1589219090 : 24 June 2017), New York > Kings > Brooklyn Ward 29 > ED 936 > image 1 of 33; citing NARA microfilm publication T624 (Washington, D.C.: National Archives and Records Administration, n.d.).
- [S90] FamilySearch, (Kirche Jesu Christi der Heiligen der Letzten Tage).
"United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/3:1:33SQ-GRZ8-V3K?cc=1810731&wc=QZFW-Q15%3A649437801%2C649437802%2C651063301%2C1589283048 : 10 December 2015), New York > Kings > Brooklyn (Districts 0001-0250) > ED 133 > image 9 of 42; citing NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002).
- [S90] FamilySearch, (Kirche Jesu Christi der Heiligen der Letzten Tage).
"New York, New York City Municipal Deaths, 1795-1949", database, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:2WTK-3PP : 3 June 2020), Julia Kummer, 1944.
- [S90] FamilySearch, (Kirche Jesu Christi der Heiligen der Letzten Tage).
"New York, New York City Marriage Records, 1829-1938", database, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:Q2CV-GT8B : 16 August 2022), Margeretta Vigerut in entry for Henry Kummer and Julia Ludwig, 1904.
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