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Helen Mccarthy — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Helen Mccarthy across the 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 11-person household.
Age 5
b. ~1925
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 | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Can Read/Write | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | City Of Chicago |
| Est. Birth Year | ~1925 |
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.
11 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Patrick Mccarthy | Head | — | 51 | ~1879 |
| Rita Mccarthy | Daughter | — | 11 | ~1919 |
| Dorothy Mccarthy | Daughter | — | 9 | ~1921 |
| Helen Mccarthy | Daughter | — | 5 | ~1925 |
| Margaret Mccarthy | Daughter | — | 24 | ~1906 |
| Edward Mccarthy | Son | — | 18 | ~1912 |
| William Mccarthy | Son | — | 14 | ~1916 |
| James Mccarthy | Son | — | 17 | ~1913 |
| Mary Mccarthy | Spouse | — | 48 | ~1882 |
| Thomas Mccarthy | Son | — | 6 | ~1924 |
| Francis Mccarthy | Son | — | 21 | ~1909 |
Census Appearances
1930
Cook, Illinois
Daughter, age 5
Cook, Illinois · implied b. ~1925 — 11 household members
| Surname | McCarthy |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 14
Cook-County, Illinois · implied b. ~1926 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Hazel |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Highest Grade | 8 |
| 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 Helen Mccarthy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Helen Mccarthy
Daughter · 1930 · age 5 · b. ~1925 · Illinois
★ You are viewing this record
Sibling
Edward Mccarthy
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Mccarthy
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mccarthy
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Mccarthy
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Mccarthy
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Mccarthy
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Mccarthy
Sibling · 1930 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Mccarthy
Sibling · 1930 · age 6
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
1930 US Federal Census — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel436:0325)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | William Jr Arnott | 10 | Son | — | Illinois |
| 52 | Harvey Arnott | 7 | Son | — | Illinois |
| 53 | Mary Mrs Ruane | 53 | Head | Proprietor | Ireland |
| 54 | Cecilia Ruane | 22 | Daughter | Operator | Illinois |
| 55 | Mary Ruane | 20 | Daughter | Operator | Illinois |
| 56 | Katherine Ruane | 18 | Daughter | Saleslady | Illinois |
| 57 | John Ruane | 16 | Son | Clerk | New York |
| 58 | Michael Ruane | 14 | Son | — | New York |
| 59 | Walter Ruane | 12 | Son | — | Illinois |
| 60 | Michael Raich | 50 | Head | Proprietor | Russia |
| 61 | Mary Raich | 45 | Wife | — | Russia |
| 62 | Victor Raich | 16 | Son | — | Illinois |
| 63 | Helen Raich | 15 | Daughter | — | Illinois |
| 64 | Adolph Raich | 13 | Son | — | Illinois |
| 65 | Thomas Kane | 60 | Head | — | Ireland |
| 66 | Margaret Kane | 60 | Wife | — | Ireland |
| 67 | Leo Kane | 28 | Son | — | Illinois |
| 68 | George Higgins | 72 | Head | Plumber | Illinois |
| 69 | Theresa Higgins | 37 | Wife | — | Iowa |
| 70 | Marie Higgins | 16 | Daughter | — | Illinois |
| 71 | George Jr Higgins | 15 | Son | — | Illinois |
| 72 | Mary Mrs Bannon | 65 | Head | — | Ireland |
| 73 | Thomas Cassidy | 38 | Son-in-law | Policeman | Illinois |
| 74 | Margaret Cassidy | 34 | Daughter | — | Illinois |
| 75 | Eugene Cassidy | 14 | Grandson | — | Illinois |
| 76 | Patrick Mccarthy | 51 | Head | Electrician | Illinois |
| 77 | Mary Mccarthy | 48 | Wife | — | Illinois |
| 78 | Margaret Mccarthy | 24 | Daughter | Servant | Illinois |
| 79 | Francis Mccarthy | 21 | Son | Apprentice | Illinois |
| 80 | Edward Mccarthy | 18 | Son | Office Boy | Illinois |
| 81 | James Mccarthy | 17 | Son | Apprentice | Illinois |
| 82 | William Mccarthy | 14 | Son | — | Illinois |
| 83 | Rita Mccarthy | 11 | Daughter | — | Illinois |
| 84 | Dorothy Mccarthy | 9 | Daughter | — | Illinois |
| 85 | Thomas Mccarthy | 6 | Son | — | Illinois |
| 86 | Helen Mccarthy THIS PERSON | 5 | Daughter | — | Illinois |
| 87 | Edward Coleman | 49 | Head | Sta Engr | Illinois |
| 88 | Mary Coleman | 43 | Wife | — | Illinois |
| 89 | John Coleman | 21 | Son | — | Illinois |
| 90 | Edward Coleman | 19 | Son | Clerk | Illinois |
| 91 | Mary Hosty | 59 | Head | — | New York |
| 92 | Thomas Hosty | 40 | Son | Inspector | Illinois |
| 93 | Martin Hosty | 38 | Son | Chauffeur | Illinois |
| 94 | Luke Hosty | 35 | Son | Clerk | Illinois |
| 95 | Steve Hosty | 27 | Son | Helper | Illinois |
| 96 | Harry Daly | 35 | Head | Milkman | Illinois |
| 97 | Agnes Daly | 31 | Wife | — | Illinois |
| 98 | Agnes Daly | 13 | Daughter | — | Illinois |
| 99 | Mary Daly | 11 | Daughter | — | Illinois |
| 100 | Joseph Daly | 9 | Son | — | Illinois |
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)