"New York State Census, 1855," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K6QY-54B : 13 March 2018), Josephine S Tweed in household of William M Tweed, E.D. 1, Ward 7, New York City, New York, New York, United States; citing p. , line #3, family #210, county clerk offices, New York; FHL microfilm 1,018,654.
"United States Census, 1860", database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MCQ1-5P5 : 12 December 2017), Josephine Tweed in entry for Julia A Bogardus, 1860. 'Student.' Also listed Lizzie Tweed (1852) and Margaret A Tweed (1849).
Find a Grave, database and images (https://www.findagrave.com : accessed 05 February 2021), memorial page for Josephine Skaden Tweed Douglas (1852–24 Oct 1920), Find A Grave: Memorial #96727360, citing Green-Wood Cemetery, Brooklyn, Kings County (Brooklyn), New York, USA ; Maintained by Julie H (contributor 46934373) .