Birth Notes:
http://stamboomnederland.nl/etalage/Hans_Unger_Stamboom_Unger_Haagse_stam_38932/index.htmll#p326
And
http://www.myheritage.com/site-family-tree-151713301/unger#!profile-2000038-info
Death Notes:
http://stamboomnederland.nl/etalage/Hans_Unger_Stamboom_Unger_Haagse_stam_38932/index.htmll#p326
And
http://www.myheritage.com/site-family-tree-151713301/unger#!profile-2000038-info

Sources of information or noted events in his life were:
• Web Based Info. http://search.ancestry.com/cgi-bin/sse.dll?rank=1&new=1&MSAV=1&msT=1&gss=angs-g&gsfn=johan+wilhelm&gsfn_x=XO&gsln=unger&gsln_x=XO&cpxt=1&catBucket=rstp&uidh=iof&cp=0&pcat=ROOT_CATEGORY&h=1863383&recoff=3+4+5+20&db=StructuredCrawledSites-455&indiv=1
• Occupation. Tobacco Buyer. http://195.242.171.17/hga/virtuelestudiezaal/WebsitePubliek/ScanVenster.aspx?scantype=advanced&akteid=3036460

Frederik married Maria Catharina Jacomina Happel, daughter of Remigius Adolphus Happel and Catharina Maria Klepper, on 26 Jul 1837 in The Hague, South Holland, Holland.6 (Maria Catharina Jacomina Happel was born on 25 Apr 1816 in The Hague, South Holland, Holland 6 and died on 8 Aug 1880 in The Hague, South Holland, Holland 6.)
Sources of information or noted events in their marriage were:
• Web Based Info. http://stamboomnederland.nl/etalage/Hans_Unger_Stamboom_Unger_Haagse_stam_38932/index.htmll#f23
And
http://www.myheritage.com/site-family-tree-151713301/unger#!profile-2000038-events
And
https://www.openarch.nl/show.php?archive=rzh&identifier=6cc92acf-20ac-47d0-9354-312cc2ca881e&lang=nl
And
Aktenummer: 292 Serieletter: Aktedatum: 26 juli 1837 Burgerlijke stand van: 's-Gravenhage Soort akte: Huwelijksakte Huwelijksdatum: 26 juli 1837 http://195.242.171.17/hga/virtuelestudiezaal/WebsitePubliek/ScanVenster.aspx?scantype=advanced&akteid=3036460
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