FS
Florence Sullivan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Florence Sullivan across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Jerimiah & Jerry — first a daughter (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Female
Daughter
Born: Rhode Island
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Sullivan |
| Given Name | Florence |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| 1935 Residence (City) | READING |
| 1935 Residence (County) | MIDDLESEX |
| Additional Details | |
| Occupation | Sales-Girl |
| Industry | Dept-Store |
| Class of Worker | PW |
| Hours Worked | 38 |
| Income (1939) | 298 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
| Occupation | Sales-Girl |
| Township / Ward | Reading |
| Est. Birth Year | ~1918 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Florence | Age | Birth yr |
|---|---|---|---|---|
| Florence Sullivan | Spouse | — | 53 | ~1887 |
| Robert Sullivan | Son | — | 17 | ~1923 |
| Florence Sullivan | Daughter | — | 22 | ~1918 |
| Jerimiah Sullivan | Head | — | 59 | ~1881 |
Census Appearances
1920
Middlesex, Massachusetts
Daughter, age 2
Middlesex, Massachusetts · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Florence F. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| Father's Birthplace | Rhode Island |
| Mother's Birthplace | Rhode Island |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
1930
Middlesex, Massachusetts
Daughter, age 12
Middlesex, Massachusetts · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Florence F. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| Father's Birthplace | Rhode Island |
| Mother's Birthplace | Rhode Island |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
1940
Middlesex-County, Massachusetts
Daughter, age 22
Middlesex-County, Massachusetts · implied b. ~1918 — 4 household members
| Surname | Sullivan |
| Given Name | Florence |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| 1935 Residence (City) | READING |
| 1935 Residence (County) | MIDDLESEX |
| Occupation | Sales-Girl |
| Industry | Dept-Store |
| Class of Worker | PW |
| Hours Worked | 38 |
| Income (1939) | 298 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
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. Identified parents: father Jerimiah Sullivan (~0.92 confidence) and father Jerry Sullivan (~0.92 confidence) and mother Florence Sullivan (~0.92 confidence) and mother Florence Sullivan (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Jerimiah Sullivan
b. ~1881
Source father
● Household
· direct · ~0.92
Father
Jerry Sullivan
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Florence Sullivan
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Florence Sullivan
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Florence Sullivan
Daughter · 1940 · age 22 · b. ~1918 · Massachusetts
★ You are viewing this record
Sibling
Robert Sullivan
Sibling · 1940 · age 17
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
1940 US Federal Census — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01617-00011)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | J. William Mahaney | 48 | Head | Embalmer | Mass |
| 42 | Thelma E. Mahaney | 35 | Wife | — | Mass |
| 43 | Sidney Manning | 72 | Head | — | Mass |
| 44 | Maude (A) Manning | 67 | Wife | — | Mass |
| 45 | Elmer P. Jr. Crooker | 41 | Head | Investigator | Mass |
| 46 | Nellie E. (X) Crooker | 72 | Mother | — | Mass |
| 47 | Ethel M. Crooker | 43 | Wife | — | Mass |
| 48 | Todd D. Crooker | 19 | Son | — | Mass |
| 49 | Richard H. Crooker | 17 | Son | Restaurant Manager | Mass |
| 50 | John H. Crooker | 15 | Son | — | Mass |
| 51 | Robert Lee Raley | 69 | Head | Office Clerk | Georgia |
| 52 | Mary R. (X) Raley | 63 | Wife | — | Maine |
| 53 | Richard H. Mckinney | 25 | Son-in-law | Radio | Maine |
| 54 | Roberta J. Mckinney | 23 | Daughter | — | Mass |
| 55 | Arthur A. Damon | 82 | Head | — | Mass |
| 56 | Alma N. Damon | 57 | Daughter | — | Mass |
| 57 | Harold W. Rolfe | 36 | Head | Bookkeeper | Mass |
| 58 | Marie R. (X) Rolfe | 37 | Wife | Piper | Mass |
| 59 | George W. Rolfe | 12 | Son | — | Mass |
| 60 | Ursula M. Rolfe | 10 | Daughter | — | Mass |
| 61 | David Rolfe | 3 | Son | — | Mass |
| 62 | Mary Rolfe | 1 | Daughter | — | Mass |
| 63 | Jerimiah F. Sullivan | 59 | Head | Ship-Fitter | Rhode Island |
| 64 | Florence M. Sullivan | 53 | Wife | — | Rhode Island |
| 65 | Florence Sullivan THIS PERSON | 22 | Daughter | Sales-Girl | Rhode Island |
| 66 | Robert Sullivan | 17 | Son | — | Rhode Island |
| 67 | John Kelly | 47 | Head | Shoe-Salesman | Mass |
| 68 | Susan (X) Kelly | 50 | Wife | — | Mass |
| 69 | John H. Kelly | 17 | Son | — | Mass |
| 70 | Mary L. Kelly | 14 | Daughter | — | Mass |
| 71 | James F. Kelly | 14 | Son | — | Mass |
| 72 | Ann E. Kelly | 9 | Daughter | — | Mass |
| 73 | Susan E. Kelly | 6 | Daughter | — | Mass |
| 74 | James O'Rourke | 51 | Brother-in-law | Crossing Tender | Mass |
| 75 | James (X) M. Gray | 75 | Head | — | Canada |
| 76 | Edith M. Gray | 74 | Wife | — | Irish Free State |
| 77 | Frank Nickerson | 41 | Head | Pressman | Mass |
| 78 | Marjorie Nickerson | 41 | Wife | — | Mass |
| 79 | Frank N. Nickerson | 20 | Son | New Worker | Mass |
| 80 | Charles M. Nickerson | 17 | Son | — | Mass |
Pedigree Summary
Florence + 1 sibling
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)