DM
Daniel Mccarthy — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Daniel Mccarthy across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Daniel & Lucille — first a son (b.~1920), then head of a 6-person household.
Age 20
b. ~1920
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | McCarthy |
| Given Name | Daniel |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago city |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | New Worker |
| Class of Worker | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | New Worker |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1920 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Daniel | Age | Birth yr |
|---|---|---|---|---|
| Jean Plimpton | Other | — | 12 | ~1928 |
| Daniel Mccarthy | Head | — | 46 | ~1894 |
| Daniel Mccarthy | Son | — | 20 | ~1920 |
| John Plimpton | Other | — | 9 | ~1931 |
| Lucille Mccarthy | Spouse | — | 39 | ~1901 |
| George Mccarthy | Son | — | 22 | ~1918 |
Census Appearances
1920
Cook, Illinois
Son, age
Cook, Illinois · implied b. ~1920 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Daniel |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 10
Cook, Illinois · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Daniel Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 20
Cook-County, Illinois · implied b. ~1920 — 6 household members
| Surname | McCarthy |
| Given Name | Daniel |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago city |
| 1935 Residence (County) | Cook |
| Occupation | New Worker |
| Class of Worker | 0 |
| Highest Grade | H 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 Daniel Mccarthy across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Daniel Mccarthy (~0.92 confidence) and mother Lucille Mccarthy (~0.92 confidence) and mother Margaret Mccarthy (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Daniel Mccarthy
b. ~1894
Source father
● Household
· direct · ~0.92
Mother
Lucille Mccarthy
b. ~1901
Source mother
● Household
· direct · ~0.92
Mother
Margaret Mccarthy
b. ~1898
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Daniel Mccarthy
Son · 1940 · age 20 · b. ~1920 · Illinois
★ You are viewing this record
Sibling
George Mccarthy
Sibling · 1940 · age 22
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
39 people indexed on this census page (nara:1940:m-t0627-00938-00424)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Olaf Olson | 77 | Father-in-law | — | Sweden |
| 2 | James Mahoney | 39 | Head | Chemist | Illinois |
| 3 | Geraldine Mahoney | 34 | Wife | — | Illinois |
| 4 | Joanne Mahoney | 7 | Daughter | — | Illinois |
| 5 | James Mahoney | 6 | Son | — | Illinois |
| 6 | Marilyn Mahoney | 3 | Daughter | — | Illinois |
| 7 | Thomas Mcdonald | 46 | Head | Motorman | Illinois |
| 8 | Beth Mcdonald | 45 | Wife | — | Indiana |
| 9 | Grace Mcdonald | 37 | Brother-in-law | Mill-Hand | Indiana |
| 10 | George Collins | 41 | Head | Partner-Owner | Illinois |
| 11 | Helen Collins | 38 | Wife | — | Illinois |
| 12 | Glenn Liebenstein | 36 | Head | Bookkeeper | Iowa |
| 13 | Margaret Liebenstein | 32 | Wife | Bookkeeper | Iowa |
| 14 | Walter Johnson | 45 | Head | Special Agent | Michigan |
| 15 | Lola Johnson | 50 | Wife | Milliner | Michigan |
| 16 | John Williams | 35 | Head | Sales Engineer | England |
| 17 | Iris Williams | 28 | Wife | — | Illinois |
| 18 | Agnes Staut | 34 | Head | Clerk Supervisor | Illinois |
| 19 | Bernard Gardener | 50 | Head | Chauffeur Salesman | Illinois |
| 20 | Alice Gardener | 41 | Wife | — | Illinois |
| 21 | Margaret Haduwal | 36 | Head | — | Illinois |
| 22 | Frederick Holzer | 31 | Head | Sales Engineer | Indiana |
| 23 | Gretchen Holzer | 27 | Wife | — | Indiana |
| 24 | Harry Hall | 27 | Head | Propeller B.M.P. | Illinois |
| 25 | Ruth Hall | 27 | Wife | Salesman | Indiana |
| 26 | Fannie Duncan | 62 | Head | Teacher | Illinois |
| 27 | Marion Marion | 56 | Head | Teacher | Michigan |
| 28 | Murray Nesbit | 44 | Head | Salesman | Illinois |
| 29 | Helen Nesbit | 39 | Wife | — | Illinois |
| 30 | John Nauman | 66 | Head | Electrician | West Virginia |
| 31 | Lucy Nauman | 56 | Wife | — | Ohio |
| 32 | Daniel Mccarthy | 46 | Head | Case Investigator | Illinois |
| 33 | Lucille Mccarthy | 39 | Wife | — | Illinois |
| 34 | George Mccarthy | 22 | Son | Clerk | Illinois |
| 35 | Daniel Mccarthy THIS PERSON | 20 | Son | New Worker | Illinois |
| 36 | Jean Plimpton | 12 | Step-son | — | Illinois |
| 37 | John Plimpton | 9 | Step-son | — | Illinois |
| 38 | Henry Holsten | 52 | Head | Traffic Manager | New York |
| 39 | Amelia Holsten | 53 | Wife | — | New York |
Related Census Records
Pedigree Summary
Daniel + 1 sibling
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)