DH
Dorothy Hoffman — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Dorothy Hoffman across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Frank & John — first a daughter (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Hoffman |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago city |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Secretary |
| Industry | Trophies |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 832 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Secretary |
| Township / Ward | Chicago 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 Dorothy | Age | Birth yr |
|---|---|---|---|---|
| William Hoffman | Son | — | 23 | ~1917 |
| Dorothy Hoffman | Daughter | — | 27 | ~1913 |
| Gertrude Hoffman | Spouse | — | 54 | ~1886 |
| Frank Hoffman | Head | — | 56 | ~1884 |
Census Appearances
1920
Cook, Illinois
Daughter, age 6
Cook, Illinois · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hoffman |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 16
Cook, Illinois · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Huffman |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 27
Cook-County, Illinois · implied b. ~1913 — 4 household members
| Surname | Hoffman |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago city |
| 1935 Residence (County) | Cook |
| Occupation | Secretary |
| Industry | Trophies |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 832 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Hoffman across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frank Hoffman (~0.92 confidence) and father John Huffman (~0.92 confidence) and father Peter Hoffman (~0.92 confidence) and mother Anna Huffman (~0.92 confidence) and mother Gertrude Hoffman (~0.92 confidence) and mother Nellie Hoffman (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Hoffman
b. ~1884
Source father
● Household
· direct · ~0.92
Father
John Huffman
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Peter Hoffman
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Anna Huffman
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Gertrude Hoffman
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Nellie Hoffman
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Dorothy Hoffman
Daughter · 1940 · age 27 · b. ~1913 · Illinois
★ You are viewing this record
Sibling
William Hoffman
Sibling · 1940 · age 23
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 — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00947-01037)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Chester S. Patrick | 45 | Head | Sales Manager | Massachusetts |
| 2 | Mary H. Patrick | 43 | Wife | — | Massachusetts |
| 3 | Chester Jr. Patrick | 20 | Son | Clerk | Massachusetts |
| 4 | Bruce H. Patrick | 17 | Son | Clerk | Illinois |
| 5 | Alice M. Hilton | 79 | Mother | — | England |
| 6 | Henry Kukowsky | 42 | Head | Proprietor | Russia |
| 7 | Margaret Kukowsky | 46 | Wife | — | Kansas |
| 8 | Harriet Kukowsky | 11 | Daughter | — | Illinois |
| 9 | Frank J. Hoffman | 56 | Head | Cutter | Illinois |
| 10 | Gertrude Hoffman | 54 | Wife | — | Illinois |
| 11 | Dorothy Hoffman THIS PERSON | 27 | Daughter | Secretary | Illinois |
| 12 | William Hoffman | 23 | Son | Draftsman | Illinois |
| 13 | Sella Mazzulla | 51 | Head | — | Italy |
| 14 | Carmen Mazzulla | 36 | Son | Mail Clerk | Illinois |
| 15 | Angeline Mazzulla | 33 | Daughter | Beauty Oper. | Illinois |
| 16 | Sue Mazzulla | 31 | Daughter | Office Clerk | Illinois |
| 17 | James Mazzulla | 29 | Son | Foreman | Illinois |
| 18 | Mildred Mazzulla | 24 | Daughter | Factory Girl | Illinois |
| 19 | Thomas Cotugno | 52 | Head | Boilermaker | Italy |
| 20 | Mary Cotugno | 46 | Wife | — | Italy |
| 21 | Albert Cotugno | 21 | Son | Laborer | Illinois |
| 22 | Louise Cotugno | 16 | Daughter | — | Illinois |
| 23 | Thomas Cotugno | 8 | Son | — | Illinois |
| 24 | Alex Magee | 53 | Head | Janitor | Northern Ireland |
| 25 | Alice Magee | 47 | Wife | — | Illinois |
| 26 | Edward Magee | 22 | Son | — | Illinois |
| 27 | Joseph Bilibaitis | 39 | Head | Packer | Lithuania |
| 28 | Anna Bilibaitis | 67 | Mother | — | Lithuania |
| 29 | John Sharmulis | 33 | Head | Molder | Pennsylvania |
| 30 | Paula Sharmulis | 64 | Mother | — | Lithuania |
| 31 | Frank Sharmulis | 36 | Brother | Molder | Pennsylvania |
| 32 | Anthony Sharmulis | 31 | Brother | Truck Driver | Illinois |
| 33 | John Kruzas | 72 | Head | Laborer | Lithuania |
| 34 | Bernard Kruzas | 32 | Son | Office Clerk | Connecticut |
| 35 | Joseph Cleo | 36 | Head | Mechanic | Illinois |
| 36 | Josephine Cleo | 33 | Wife | — | Italy |
| 37 | Veronica Cleo | 12 | Daughter | — | Illinois |
| 38 | Ronald Cleo | 4 | Son | — | Illinois |
| 39 | Angela Cleo | 1 | Daughter | — | Illinois |
| 40 | Veronica Cleo | 65 | Mother | — | Italy |
Pedigree Summary
Dorothy + 1 sibling
Gen 1 · 6 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)