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John Mccarthy — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cook, Illinois
Our Model Tree links this John Mccarthy across the 1910, 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed), with identified parents John & Louise — first a son (b.~1905), then head of a 4-person household.
Age 25
b. ~1905
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | McCarthy |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Occupation | Stockboy |
| Industry | Drug House |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Stockboy |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1905 |
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 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Julia Mccarthy | Head | — | 50 | ~1880 |
| John Mccarthy | Son | — | 25 | ~1905 |
| William Mccarthy | Son | — | 20 | ~1910 |
| Edward Mccarthy | Son | — | 23 | ~1907 |
Census Appearances
Son, age 4
Cook, Illinois · implied b. ~1906 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarty |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Cook, Illinois
Son, age 14
Cook, Illinois · implied b. ~1906 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mc Carthy |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 25
Cook, Illinois · implied b. ~1905 — 4 household members
| Surname | McCarthy |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Stockboy |
| Industry | Drug House |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| 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 John Mccarthy across 3 US Census years (1910, 1920 and 1930) in Cook, Illinois, using XGBoost record linkage. Identified parents: father John Mccarty (~0.92 confidence) and mother Louise Mccarty (~0.92 confidence) and father Edward Mc Carthy (~0.92 confidence) and mother Julia Mccarthy (~0.92 confidence) and mother Agatha Mc Carthy (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Mccarty
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Louise Mccarty
b. ~1877
Source mother
● Household
· direct · ~0.92
Father
Edward Mc Carthy
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Julia Mccarthy
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Agatha Mc Carthy
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Mccarthy
Son · 1930 · age 25 · b. ~1905 · Illinois
★ You are viewing this record
Sibling
Edward Mccarthy
Sibling · 1930 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mccarthy
Sibling · 1930 · age 20
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:illinoiscensus00reel437:0855)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Nellie Casey | 49 | Head | — | Irish Free State |
| 52 | Catherine Casey | 25 | daughter | Saleslady | Illinois |
| 53 | Mary Casey | 24 | daughter | Collector | Illinois |
| 54 | Lawrence Casey | 22 | son | Checker | Illinois |
| 55 | Julia Mccarthy | 50 | Head | — | Northern Ireland |
| 56 | John Mccarthy THIS PERSON | 25 | son | Stockboy | Illinois |
| 57 | Edward Mccarthy | 23 | son | Credit Man | Illinois |
| 58 | William Mccarthy | 20 | son | Office Boy | Illinois |
| 59 | Thomas Quigley | 37 | Head | Laborer | Northern Ireland |
| 60 | Marguerite Quigley | 37 | wife | — | Illinois |
| 61 | John J. Quigley | 31 | brother | Chauffeur | Illinois |
| 62 | Margaret Smith | 68 | aunt | — | Northern Ireland |
| 63 | James Tracy | 55 | roomer | Laborer | Northern Ireland |
| 64 | Patrick Bresnahan | 42 | Head | Loader | Northern Ireland |
| 65 | Margaret Bresnahan | 38 | wife | — | Northern Ireland |
| 66 | Joseph Bresnahan | 14 | son | — | Illinois |
| 67 | Francis Bresnahan | 13 | son | — | Illinois |
| 68 | James Guilfoyle | 68 | Head | Laborer | Irish Free State |
| 69 | Nellie Guilfoyle | 67 | wife | — | Irish Free State |
| 70 | John Guilfoyle | 26 | son | Laborer | Illinois |
| 71 | Joseph J. Doyle | 44 | Head | Locomotive Engineer | Illinois |
| 72 | Hazel Doyle | 38 | wife | — | Illinois |
| 73 | Marjorie Doyle | 15 | daughter | — | Illinois |
| 74 | Eunice Doyle | 17 | daughter | — | Illinois |
| 75 | Rita Doyle | 10 | daughter | — | Illinois |
| 76 | Richard Pratt | 50 | Head | Laborer | Illinois |
| 77 | Margaret Pratt | 47 | wife | — | Illinois |
| 78 | Alfred Pratt | 20 | son | — | Nebraska |
| 79 | Richard Jr. Pratt | 20 | son | — | Illinois |
| 80 | Robert Pratt | 18 | son | Salesman | Illinois |
| 81 | Mary Mckeown | 58 | Head | Laundress | Irish Free State |
| 82 | Margaret Blaney | 34 | daughter | — | Illinois |
| 83 | John Blaney | 32 | son-in-law | Motorman | Illinois |
| 84 | Mary Agnes Blaney | 10 | granddaughter | — | Illinois |
| 85 | Margaret Blaney | 8 | granddaughter | — | Illinois |
| 86 | Theresa Blaney | 6 | granddaughter | — | Illinois |
| 87 | Edward Keum | 11 | grandson | — | Illinois |
| 88 | Mary Keum | 10 | granddaughter | — | Illinois |
| 89 | Loretta Keum | 8 | granddaughter | — | Illinois |
| 90 | John Keum | 6 | grandson | Conductor | Illinois |
| 91 | Carroll Thurston | 27 | Head | — | Illinois |
| 92 | Myrtle Thurston | 23 | wife | — | Alabama |
| 93 | Shirley Thurston | 7 | daughter | — | Illinois |
| 94 | Janice Thurston | 5 | daughter | — | Illinois |
| 95 | Carroll Jr. Thurston | 3 | son | — | Illinois |
| 96 | June Thurston | 0 | daughter | — | Illinois |
| 97 | Ignatius Abegunski | 40 | Head | Molder | Poland |
| 98 | Stella Abegunski | 40 | wife | — | Germany |
| 99 | Walter Abegunski | 19 | son | Helper | Illinois |
| 100 | Edward Abegunski | 17 | son | Messenger Boy | Illinois |
Related Census Records
Pedigree Summary
John + 2 siblings
Gen 1 · 5 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)