DS
Daniel Sullivan — 1930 US Census Record
Model Tree available1930 United States Federal Census · San Francisco, California
Our Model Tree links this Daniel Sullivan across the 1920, 1930 and 1940 US Censuses in San Francisco, California (XGBoost, ~Confirmed), with identified parents Paul & James — first a son (b.~1920), then head of a 5-person household.
Age 10
b. ~1920
Male
Son
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | San Francisco, California |
| Surname | Sullivan |
| Given Name | Daniel |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1920 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Daniel | Age | Birth yr |
|---|---|---|---|---|
| Margaret Sullivan | Daughter | — | 12 | ~1918 |
| James Sullivan | Head | — | 45 | ~1885 |
| Daniel Sullivan | Son | — | 10 | ~1920 |
| James Sullivan | Son | — | 14 | ~1916 |
| Catherine Sullivan | Spouse | — | 42 | ~1888 |
Census Appearances
1920
San Francisco, …
Son, age
San Francisco, California · implied b. ~1920 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Daniel Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Ireland |
| Mother's Birthplace | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
San Francisco, …
Son, age 10
San Francisco, California · implied b. ~1920 — 5 household members
| Surname | Sullivan |
| Given Name | Daniel |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Son, age 20
San-Francisco-County, California · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Dan |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Income (1939) | 0 |
| Highest Grade | C-1 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Daniel Sullivan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Paul Sullivan (~0.92 confidence) and father James Sullivan (~0.92 confidence) and father Daniel Sullivan (~0.92 confidence) and mother Catherine Sullivan (~0.92 confidence) and mother Agnes Sullivan (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Paul Sullivan
b. ~1885
Source father
● Household
· direct · ~0.92
Father
James Sullivan
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Daniel Sullivan
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Catherine Sullivan
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Agnes Sullivan
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Daniel Sullivan
Son · 1930 · age 10 · b. ~1920 · California
★ You are viewing this record
Sibling
James Sullivan
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Sullivan
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — San Francisco, California
Open full size
1930 US Federal Census — San Francisco, California
Page Contents
50 people indexed on this census page (ia:1930:californiacensus00reel209:0603)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Hans Hansen | 42 | Head | Laborer | Denmark |
| 2 | Anna Hansen | 40 | Wife | — | Denmark |
| 3 | Hans Jr Hansen | 18 | Son | — | California |
| 4 | Elmer Hansen | 16 | Son | — | California |
| 5 | Arthur Hansen | 14 | Son | — | California |
| 6 | Alice Hansen | 12 | Daughter | — | California |
| 7 | Dorothy Hansen | 10 | Daughter | — | California |
| 8 | Axel Anderson | 45 | Head | Carpenter | Sweden |
| 9 | Hilda Anderson | 42 | Wife | — | Sweden |
| 10 | Ruth Anderson | 15 | Daughter | — | California |
| 11 | Edith Anderson | 13 | Daughter | — | California |
| 12 | Carl Anderson | 11 | Son | — | California |
| 13 | Robert Anderson | 9 | Son | — | California |
| 14 | Nels Nelson | 50 | Head | Sailor | Norway |
| 15 | Mary Nelson | 48 | Wife | — | Norway |
| 16 | Olaf Nelson | 20 | Son | Clerk | California |
| 17 | Ingrid Nelson | 18 | Daughter | Stenographer | California |
| 18 | Gustaf Johnson | 38 | Head | Painter | Sweden |
| 19 | Svea Johnson | 35 | Wife | — | Sweden |
| 20 | Sven Johnson | 10 | Son | — | California |
| 21 | Karin Johnson | 8 | Daughter | — | California |
| 22 | John Miller | 45 | Head | Baker | Germany |
| 23 | Martha Miller | 42 | Wife | — | Germany |
| 24 | Fred Miller | 16 | Son | — | California |
| 25 | Louise Miller | 14 | Daughter | — | California |
| 26 | Karl Schmidt | 52 | Head | Machinist | Germany |
| 27 | Emma Schmidt | 48 | Wife | — | Germany |
| 28 | Otto Schmidt | 22 | Son | Clerk | California |
| 29 | Hilda Schmidt | 18 | Daughter | Typist | California |
| 30 | Patrick O'Brien | 40 | Head | Motorman | Ireland |
| 31 | Bridget O'Brien | 38 | Wife | — | Ireland |
| 32 | John O'Brien | 12 | Son | — | California |
| 33 | Mary O'Brien | 10 | Daughter | — | California |
| 34 | Thomas O'Brien | 8 | Son | — | California |
| 35 | James Sullivan | 45 | Head | Laborer | Ireland |
| 36 | Catherine Sullivan | 42 | Wife | — | Ireland |
| 37 | James Jr Sullivan | 14 | Son | — | California |
| 38 | Margaret Sullivan | 12 | Daughter | — | California |
| 39 | Daniel Sullivan THIS PERSON | 10 | Son | — | California |
| 40 | Giovanni Rossi | 48 | Head | Scavenger | Italy |
| 41 | Maria Rossi | 44 | Wife | — | Italy |
| 42 | Antonio Rossi | 20 | Son | Laborer | California |
| 43 | Rosa Rossi | 18 | Daughter | Saleslady | California |
| 44 | Luigi Rossi | 16 | Son | — | California |
| 45 | Elena Rossi | 14 | Daughter | — | California |
| 46 | Pietro Bianchi | 50 | Head | Gardener | Italy |
| 47 | Angela Bianchi | 46 | Wife | — | Italy |
| 48 | Gino Bianchi | 22 | Son | Chauffeur | California |
| 49 | Anna Bianchi | 18 | Daughter | Stenographer | California |
| 50 | Mario Bianchi | 15 | Son | — | California |
Related Census Records
Pedigree Summary
Daniel + 2 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)