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Helen Mccarthy — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Helen Mccarthy across the 1910, 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed), with identified parents J & John — first a daughter (b.~1908), then head of a 3-person household.
Age 22
b. ~1908
Female
Daughter
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | McCarthy |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Wholesale Grocery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Stenographer |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1908 |
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.
3 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| John Mccarthy | Head | — | 58 | ~1872 |
| Helen Mccarthy | Daughter | — | 22 | ~1908 |
| Anne Mccarthy | Spouse | — | 57 | ~1873 |
Census Appearances
1910
Cook, Illinois
Daughter, age 2
Cook, Illinois · implied b. ~1908 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Helen D. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Cook, Illinois
Daughter, age 11
Cook, Illinois · implied b. ~1909 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Hellen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 22
Cook, Illinois · implied b. ~1908 — 3 household members
| Surname | McCarthy |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Stenographer |
| Industry | Wholesale Grocery |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 Helen Mccarthy across 3 US Census years (1910, 1920 and 1930) in Cook, Illinois, using XGBoost record linkage. Identified parents: father J Hart (~0.92 confidence) and father John Mccarthy (~0.92 confidence) and father Lawrence Mccarthy (~0.92 confidence) and mother Anne Mccarthy (~0.92 confidence) and mother Katherine Mccarthy (~0.92 confidence) and mother Kathrine Hart (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
J Hart
b. ~1885
Source father
● Household
· direct · ~0.92
Father
John Mccarthy
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Lawrence Mccarthy
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Anne Mccarthy
b. ~1873
Source mother
● Household
· direct · ~0.92
Mother
Katherine Mccarthy
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Kathrine Hart
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Mccarthy
Daughter · 1930 · age 22 · b. ~1908 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
20 people indexed on this census page (ia:1930:illinoiscensus00reel429:0146)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Eleanor Hanne | 14 | Daughter | — | Illinois |
| 52 | Edward Reichman | 26 | Son-in-law | Salesman | Illinois |
| 53 | Frances Reichman | 23 | Wife | — | Illinois |
| 54 | Marion Lou Reichman | 3 | Granddaughter | — | Illinois |
| 55 | William S. Truscott | 64 | Head | Chief Clerk | Illinois |
| 56 | Annette Truscott | 61 | Wife | — | Illinois |
| 57 | John B. Dahinden | 49 | Head | Solicitor | Wisconsin |
| 58 | Nellie Dahinden | 43 | Wife | — | Illinois |
| 59 | Blanche Dahinden | 20 | Daughter | — | Wisconsin |
| 60 | John Mccarthy | 58 | Head | Lighting Dept. | Illinois |
| 61 | Anne Mccarthy | 57 | Wife | — | Illinois |
| 62 | Helen Mccarthy THIS PERSON | 22 | Daughter | Stenographer | Illinois |
| 63 | Joseph Kelly | 61 | Head | Clerk | Irish Free State |
| 64 | Helen Kelly | 50 | Wife | — | Illinois |
| 65 | Harry Kelly | 18 | Son | Messenger | Illinois |
| 66 | John Kelly | 11 | Son | — | Illinois |
| 67 | Lee H. Smith | 40 | Head | Electrical Contractor | Illinois |
| 68 | Steven L. Smith | 3 | Son | — | Illinois |
| 69 | Maggie Smith | 81 | Mother | — | Illinois |
| 70 | Mary Kiley | 60 | Housekeeper | Housekeeper | New York |
Pedigree Summary
Helen
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 1930 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)