HS
Helen Sullivan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Salt-Lake-County, Utah
Our Model Tree links this Helen Sullivan across the 1920, 1930 and 1940 US Censuses in Salt-Lake-County, Utah (XGBoost, ~Confirmed), with identified parents James & James — first a daughter (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Female
Daughter
Born: Utah
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Salt-Lake-County, Utah |
| Surname | Sullivan |
| Given Name | Helen R. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Utah |
| 1935 Residence (City) | Salt Lake City |
| 1935 Residence (County) | Salt Lake |
| Additional Details | |
| Occupation | bookkeeper |
| Industry | retail department store |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 760 |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
| Occupation | Bookkeeper |
| Township / Ward | Salt Lake City |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Grace Sullivan | Daughter | — | 24 | ~1916 |
| Helen Sullivan | Daughter | — | 27 | ~1913 |
| Edna Sullivan | Daughter | — | 15 | ~1925 |
| James Sullivan | Head | — | 59 | ~1881 |
Census Appearances
1920
Salt Lake, …
Daughter, age 6
Salt Lake, Utah · implied b. ~1914 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Helen Rosella |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | Utah |
| Occupation | none |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1930
Salt Lake, …
Daughter, age 17
Salt Lake, Utah · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Helen K. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | Utah |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1940
Salt-Lake-County, Utah
Daughter, age 27
Salt-Lake-County, Utah · implied b. ~1913 — 4 household members
| Surname | Sullivan |
| Given Name | Helen R. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Utah |
| 1935 Residence (City) | Salt Lake City |
| 1935 Residence (County) | Salt Lake |
| Occupation | bookkeeper |
| Industry | retail department store |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 760 |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
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 Helen Sullivan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Sullivan (~0.92 confidence) and father James Sullivan (~0.92 confidence) and mother Edna Sullivan (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Sullivan
b. ~1881
Source father
● Household
· direct · ~0.92
Father
James Sullivan
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Edna Sullivan
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Sullivan
Daughter · 1940 · age 27 · b. ~1913 · Utah
★ You are viewing this record
Sibling
Edna Sullivan
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Grace Sullivan
Sibling · 1940 · age 24
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 — Salt-Lake-County, Utah
Open full size
1940 US Federal Census — Salt-Lake-County, Utah
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-04223-00591)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lloyd Kimball | 14 | son | — | Utah |
| 42 | Carlin Kimball | 8 | daughter | — | Utah |
| 43 | Janice Kimball | 6 | daughter | — | Utah |
| 44 | Rulon J. Sperry | 45 | head | Auditor | Utah |
| 45 | Lucy F. Sperry | 40 | wife | — | Utah |
| 46 | Geraldine Sperry | 8 | daughter | — | Utah |
| 47 | Robert Sperry | 4 | son | — | Utah |
| 48 | Della Hoagland | 20 | maid | Salesclerk | Idaho |
| 49 | Samuel C. Leaver | 36 | head | Pharmacist | Utah |
| 50 | Edna Leaver | 36 | wife | — | Utah |
| 51 | Clifford Leaver | 5 | son | — | Utah |
| 52 | Joan Leaver | 1 | daughter | — | Utah |
| 53 | Josie Connary | 66 | mother-in-law | — | Utah |
| 54 | Reed Hoover | 39 | head | Civil Engineer | Utah |
| 55 | Alice Hoover | 30 | wife | — | Utah |
| 56 | Patricia Hoover | 4 | daughter | — | Utah |
| 57 | Nelda Cowan | 22 | sister-in-law | Stenographer | Utah |
| 58 | Edward A. Johnstone | 56 | head | Clerk | New York |
| 59 | Agnes Johnstone | 52 | wife | — | Connecticut |
| 60 | Katherine Johnstone | 23 | daughter | Writer And Stenographer | Utah |
| 61 | Avery C. Dunn | 55 | head | Traveling Auditor | Wisconsin |
| 62 | Susan L. Dunn | 41 | wife | — | Idaho |
| 63 | Jessie H. Lloyd | 79 | father-in-law | — | Utah |
| 64 | Sarah E. Lloyd | 75 | mother-in-law | — | Utah |
| 65 | James H. Sullivan | 59 | head | Chief Clerk | North Carolina |
| 66 | Helen R. Sullivan THIS PERSON | 27 | daughter | Bookkeeper | Utah |
| 67 | Grace K. Sullivan | 24 | daughter | — | Utah |
| 68 | Edna R. Sullivan | 15 | daughter | — | Utah |
| 69 | D. Grand Woolley | 53 | head | Doctor | Utah |
| 70 | Alida Woolley | 53 | wife | — | Utah |
| 71 | Alida Woolley | 17 | daughter | — | Utah |
| 72 | Galen Woolley | 12 | son | — | Utah |
| 73 | Alice Jensen | 52 | head | — | Utah |
| 74 | Afton Jensen | 27 | daughter | Bookkeeper | Utah |
| 75 | William Jensen | 24 | son | — | Utah |
| 76 | Hazel Jeppson | 49 | head | Stenographer | Utah |
| 77 | Hattie Jeppson | 39 | sister | Stenographer | Utah |
| 78 | Hannah Jeppson | 81 | mother | — | Sweden |
| 79 | Ida Vasiloff | 40 | servant | Servant | Utah |
Pedigree Summary
Helen + 2 siblings
Gen 1 · 3 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)