DS
Dorothy Sullivan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Dorothy Sullivan across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents J & Jeremiah — first a daughter (b.~1918), then head of a 6-person household.
Age 22
b. ~1918
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Sullivan |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Crafton Boro |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | New Worker |
| Class of Worker | PW |
| Hours Worked | 10 |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | New Worker |
| Township / Ward | Crafton Boro |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Mary Sullivan | Daughter | — | 19 | ~1921 |
| Dorothy Sullivan | Daughter | — | 22 | ~1918 |
| Jerry Sullivan | Son | — | 25 | ~1915 |
| J Sullivan | Head | — | 63 | ~1877 |
| Elizabeth Sullivan | Spouse | — | 59 | ~1881 |
| Lucille Sullivan | Daughter | — | 31 | ~1909 |
Census Appearances
1920
Allegheny, Pennsylvania
Daughter, age 2
Allegheny, Pennsylvania · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | New York |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Daughter, age 12
Allegheny, Pennsylvania · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | New York |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Daughter, age 22
Allegheny-County, Pennsylvania · implied b. ~1918 — 6 household members
| Surname | Sullivan |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Crafton Boro |
| 1935 Residence (County) | Allegheny |
| Occupation | New Worker |
| Class of Worker | PW |
| Hours Worked | 10 |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Dorothy Sullivan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father J Sullivan (~0.92 confidence) and father Jeremiah Sullivan (~0.92 confidence) and mother Elizabeth Sullivan (~0.92 confidence) and mother Elizabeth Sullivan (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
J Sullivan
b. ~1877
Source father
● Household
· direct · ~0.92
Father
Jeremiah Sullivan
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Sullivan
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Elizabeth Sullivan
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Dorothy Sullivan
Daughter · 1940 · age 22 · b. ~1918 · Pennsylvania
★ You are viewing this record
Sibling
Jerry Sullivan
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lucille Sullivan
Sibling · 1940 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Sullivan
Sibling · 1940 · age 19
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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03401-00391)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Kathryn Cook | 59 | Wife | — | Pennsylvania |
| 2 | Thomas Cook | 16 | Son | — | Ohio |
| 3 | Matthew Cook | 9 | Son | — | Pennsylvania |
| 4 | Mary English | 85 | Mother-in-law | — | Pennsylvania |
| 5 | Lawrence Schneider | 50 | Head | Office Clerk | Pennsylvania |
| 6 | Anna E. Schneider | 49 | Wife | — | Pennsylvania |
| 7 | Lawrence Jr. Schneider | 22 | Son | Salesman | Pennsylvania |
| 8 | Mary Josephine Schneider | 20 | Daughter | — | Pennsylvania |
| 9 | Raymond Schneider | 18 | Son | — | Pennsylvania |
| 10 | Albert Schneider | 16 | Son | — | Pennsylvania |
| 11 | Paul Schneider | 14 | Son | — | Pennsylvania |
| 12 | Joseph Schneider | 9 | Son | — | Pennsylvania |
| 13 | William Dwyer | 37 | Head | Professor | New York |
| 14 | Helen Dwyer | 32 | Wife | — | New York |
| 15 | John Bathrouff | 44 | Head | Refrigeration Engineer | Pennsylvania |
| 16 | Louise Bathrouff | 48 | Wife | — | Georgia |
| 17 | J. W. Carr | 82 | Mother-in-law | — | Georgia |
| 18 | Richard Moore | 34 | Head | Office Clerk | Illinois |
| 19 | Marietta Moore | 35 | Wife | Sales Clerk | Connecticut |
| 20 | Agnes M. Black | 50 | Head | — | Pennsylvania |
| 21 | Jeanetta R. Black | 48 | Sister | Secretary | Pennsylvania |
| 22 | W. J. Warner | 49 | Brother-in-law | Salesman | Pennsylvania |
| 23 | Mary B. Warner | 51 | Sister | — | Pennsylvania |
| 24 | Robert W. Rinehart | 35 | Head | Sales Manager | Indiana |
| 25 | Lois C. Rinehart | 33 | Wife | — | Pennsylvania |
| 26 | Robert Rinehart | 7 | Son | — | Pennsylvania |
| 27 | Barbara Rinehart | 6 | Daughter | — | Pennsylvania |
| 28 | Donald Rinehart | 1 | Son | — | Pennsylvania |
| 29 | Sophie Matuzyk | 22 | Maid | Maid | Pennsylvania |
| 30 | — | None | — | — | — |
| 31 | H. L. Smith | 66 | Head | Auditor | Ohio |
| 32 | Laura S. Smith | 62 | Wife | — | Ohio |
| 33 | Elizabeth Smith | 90 | Mother | — | Ohio |
| 34 | Rena Mclaughlin | 51 | Sister | Stenographer | Ohio |
| 35 | J. F. Sullivan | 63 | Head | — | New York |
| 36 | Elizabeth Sullivan | 59 | Wife | — | Pennsylvania |
| 37 | Lucille Sullivan | 31 | Daughter | — | Pennsylvania |
| 38 | Jerry Sullivan | 25 | Son | Insurance | Pennsylvania |
| 39 | Dorothy Sullivan THIS PERSON | 22 | Daughter | New Worker | Pennsylvania |
| 40 | Mary Margaret Sullivan | 19 | Daughter | — | Pennsylvania |
Pedigree Summary
Dorothy + 3 siblings
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)