Joseph Biden

===Primary sources for 1===

===Primary sources for 1===

*[http://search.ancestry.com/cgi-bin/sse.dll?indiv=1&db=1920usfedcen%2c&rank=0&tips=0&gsfn=Joseph&gsln=Biden&sx=&gs1co=1%2cAll+Countries&gs1pl=1%2c+&year=&yearend=&sbo=0&sbor=&ufr=0&wp=4%3b_80000002%3b_80000003&srchb=r&prox=1&ti=0&ti.si=0&gss=angs-d&o_iid=21416&o_lid=21416&o_it=21416&fh=4&recid=34099257&recoff=1+3 1920 Census of Baltimore, Maryland] showing "Joseph H Biden, 27, b MD; Mary E 25, b MD; Joseph R 4 6/12, b MD; Mary A 2 11/12; Frank H 1 4/12"

*[http://search.ancestry.com/cgi-bin/sse.dll?indiv=1&db=1920usfedcen%2c&rank=0&tips=0&gsfn=Joseph&gsln=Biden&sx=&gs1co=1%2cAll+Countries&gs1pl=1%2c+&year=&yearend=&sbo=0&sbor=&ufr=0&wp=4%3b_80000002%3b_80000003&srchb=r&prox=1&ti=0&ti.si=0&gss=angs-d&o_iid=21416&o_lid=21416&o_it=21416&fh=4&recid=34099257&recoff=1+3 1920 Census of Baltimore, Maryland] showing "Joseph H Biden, 27, b MD; Mary E 25, b MD; Joseph R 4 6/12, b MD; Mary A 2 11/12; Frank H 1 4/12"

*[http://search.ancestry.com/cgi-bin/sse.dll?indiv=1&db=ssdi%2c&rank=0&tips=0&gsfn=Joseph&gsln=Biden&sx=&gs1co=1%2cAll+Countries&gs1pl=1%2c+&year=&yearend=&sbo=0&sbor=&ufr=0&wp=4%3b_80000002%3b_80000003&srchb=r&prox=1&ti=0&ti.si=0&gss=angs-d&o_iid=21416&o_lid=21416&o_it=21416&fh=0&recid=5390248&recoff=1+2 Social Security Death Index] showing "Joseph R Biden Sr, born 13 Nov 1915, SSN issued by Maryland, died 2 Sep 2002, last residence Wilmington, New Castle County, Delaware"

*[http://search.ancestry.com/cgi-bin/sse.dll?indiv=1&db=ssdi%2c&rank=0&tips=0&gsfn=Joseph&gsln=Biden&sx=&gs1co=1%2cAll+Countries&gs1pl=1%2c+&year=&yearend=&sbo=0&sbor=&ufr=0&wp=4%3b_80000002%3b_80000003&srchb=r&prox=1&ti=0&ti.si=0&gss=angs-d&o_iid=21416&o_lid=21416&o_it=21416&fh=0&recid=5390248&recoff=1+2 Social Security Death Index] showing "Joseph R Biden Sr, born 13 Nov 1915, SSN issued by Maryland, died 2 Sep 2002, last residence Wilmington, New Castle County, Delaware"