"New York, New York City Births, 1846-1909," database, FamilySearch (https://familysearch.org/pal:/MM9.1.1/27YC-1WY : 20 March 2015), Lidda Hohenhausen Unger in entry for Richard Unger, 11 May 1903; citing Manhattan, New York, New York, United States, ref
Year: 1920; Census Place: Queens Assembly District 1, Queens, New York; Roll: T625_1229; Page: 3B; Enumeration District: 49; Image: 1015
Marital Status: Married; Relation to Head of House: Wife
Year: 1920; Census Place: Queens Assembly District 1, Queens, New York; Roll: T625_1229; Page: 3B; Enumeration District: 49; Image: 1015