FS
Florence Sullivan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · New-York-County, New York
Our Model Tree links this Florence Sullivan across the 1920, 1930 and 1940 US Censuses in New-York-County, New York (XGBoost, ~Confirmed) — first a head (b.~1913), then head of a 2-person household.
Age 27
b. ~1913
Female
Head
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | New-York-County, New York |
| Surname | Sullivan |
| Given Name | Florence |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Manhattan Borough |
| 1935 Residence (County) | New York |
| Additional Details | |
| Class of Worker | H |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | Manhattan Borough |
| Est. Birth Year | ~1913 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Florence | Age | Birth yr |
|---|---|---|---|---|
| Daniel Sullivan | Son | — | 15 | ~1925 |
| Florence Sullivan | Head | — | 27 | ~1913 |
Census Appearances
1920
New York, …
Other, age 7
New York, New York · implied b. ~1913 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Florence |
| Relationship to Head | Inmate |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | School girl |
| Industry | Hospital |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
New York, …
Other, age 16
New York, New York · implied b. ~1914 — 36 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Florence |
| Relationship to Head | Student |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | """" |
| Industry | """" |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
New-York-County, New …
Head, age 27
New-York-County, New York · implied b. ~1913 — 2 household members
| Surname | Sullivan |
| Given Name | Florence |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Manhattan Borough |
| 1935 Residence (County) | New York |
| Class of Worker | H |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 Florence Sullivan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Florence Sullivan
Head · 1940 · age 27 · b. ~1913 · New York
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — New-York-County, New York
Open full size
1940 US Federal Census — New-York-County, New York
Page Contents
7 people indexed on this census page (nara:1940:m-t0627-02642-00848)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Florence Sullivan THIS PERSON | 27 | Head | — | New York |
| 2 | Daniel Sullivan | 15 | Son | — | New York |
| 5 | Ida Frankenstein | 68 | Head | — | Massachusetts |
| 6 | Matthew Kroninger | 50 | Head | — | Germany |
| 7 | Dorothy Liebe | 31 | Head | Waitress | Germany |
| 8 | Martha Ullman | 53 | Head | None | New York |
| 9 | Johanna Elkin | 61 | Lodger | No No No No | Germany |
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)