DS
Daniel Sullivan — 1940 US Census Record
Model Tree available1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this Daniel Sullivan across the 1920, 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed), with identified parents Patrick & Patrick — first a head (b.~1907), then head of a 3-person household.
Age 33
b. ~1907
Male
Head
Born: California
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Sullivan |
| Given Name | Daniel |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Additional Details | |
| Occupation | Policeman |
| Industry | Police Dept. |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 2400 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Policeman |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1907 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Daniel | Age | Birth yr |
|---|---|---|---|---|
| Daniel Sullivan | Head | — | 33 | ~1907 |
| Daniel Sullivan | Son | — | 1 | ~1939 |
| Ruth Sullivan | Spouse | — | 30 | ~1910 |
Census Appearances
1920
San Francisco, …
Son, age 13
San Francisco, California · implied b. ~1907 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Daniel |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
San Francisco, …
Son, age 23
San Francisco, California · implied b. ~1907 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Daniel J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Salesman |
| Industry | Paint Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Head, age 33
San-Francisco-County, California · implied b. ~1907 — 3 household members
| Surname | Sullivan |
| Given Name | Daniel |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Occupation | Policeman |
| Industry | Police Dept. |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 2400 |
| Highest Grade | Hs 4 |
| 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 Patrick Sullivan (~0.92 confidence) and father Patrick Sullivan (~0.92 confidence) and mother Margaret Sullivan (~0.92 confidence) and mother Margaret Sullivan (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Patrick Sullivan
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Patrick Sullivan
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Margaret Sullivan
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Margaret Sullivan
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Daniel Sullivan
Head · 1940 · age 33 · b. ~1907 · California
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — San-Francisco-County, California
Open full size
1940 US Federal Census — San-Francisco-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00301-00720)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elizabeth Kreuse | 37 | daughter | Stenographer | California |
| 2 | Rhoda W. Kreuse | 30 | daughter | Stenographer | California |
| 3 | George J. Ebert | 49 | head | — | Washington |
| 4 | Cora B. Ebert | 52 | wife | — | North Dakota |
| 5 | Paul Sora | 70 | head | Washer | France |
| 6 | Rose Sora | 57 | wife | — | France |
| 7 | Rose Sora | 16 | daughter | — | California |
| 8 | Paula Sora | 14 | daughter | — | California |
| 9 | Renee Sora | 11 | daughter | — | California |
| 10 | Daniel Sullivan THIS PERSON | 33 | head | Policeman | California |
| 11 | Ruth Sullivan | 30 | wife | — | California |
| 12 | Daniel Sullivan | 1 | son | — | California |
| 13 | Frank G. Strubel | 51 | head | Fireman | California |
| 14 | Lottie B. Gerry | 64 | housekeeper | Housekeeper | Colorado |
| 15 | John Ames | 45 | head | Stevedore | California |
| 16 | Marion Ames | 81 | mother | — | Michigan |
| 17 | Cornelius Mclaughlin | 63 | head | — | California |
| 18 | Estelle Mclaughlin | 52 | wife | — | California |
| 19 | Lillian Mclaughlin | 23 | daughter | Stenographer | California |
| 20 | Harold Conella | 42 | head | — | California |
| 21 | Joseph Domenigoni | 26 | head | Butcher | California |
| 22 | Vera Domenigoni | 25 | wife | — | California |
| 23 | Reynerdo Accornero | 49 | head | Pantry Worker | Italy |
| 24 | Valentina Accornero | 48 | wife | — | Italy |
| 25 | Italo Accornero | 18 | son | Clerk | California |
| 26 | Norma Accornero | 12 | daughter | — | California |
| 27 | Joseph Brusa | 45 | lodger | Janitor | Italy |
| 28 | Joseph Noferly | 39 | lodger | Stevedore | California |
| 29 | Vincent Maida | 15 | nephew | — | California |
| 30 | Lyle Davis | 28 | head | Longshoreman | Oregon |
| 31 | Vera Davis | 22 | wife | — | California |
| 32 | Mildred Davis | 2 | daughter | — | California |
| 33 | Alma Mullen | 50 | mother-in-law | Hostess | California |
| 34 | Edward La Pointe | 25 | head | Jewelry Stamper | Connecticut |
| 35 | Vera La Pointe | 20 | wife | — | California |
| 36 | Harry Grubben | 52 | head | Laborer | England |
| 37 | Mary Grubben | 56 | wife | — | Ireland N.I. |
| 38 | Paul Coulon | 32 | head | Operator | France |
| 39 | Alice Coulon | 26 | wife | — | California |
| 40 | William Jr. Walsh | 25 | head | Longshoreman | California |
Pedigree Summary
Daniel
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)