JF
John Flaherty — 1940 US Census Record
Model Tree available1940 United States Federal Census · Bureau-County, Illinois
Our Model Tree links this John Flaherty across the 1920, 1930 and 1940 US Censuses in Bureau-County, Illinois (XGBoost, ~Confirmed), with identified parents Mary & Mike — first a son (b.~1906), then head of a 5-person household.
Age 34
b. ~1906
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Bureau-County, Illinois |
| Surname | Flaherty |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Hall |
| 1935 Residence (County) | Bureau |
| Additional Details | |
| Occupation | Farm Laborer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 52 |
| Income (1939) | 888 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Farm Laborer |
| Township / Ward | Hall |
| Est. Birth Year | ~1906 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mike Flaherty | Head | — | 64 | ~1876 |
| John Flaherty | Son | — | 34 | ~1906 |
| Helen Flaherty | Daughter | — | 32 | ~1908 |
| Edmund Flaherty | Son | — | 26 | ~1914 |
| Mary Flaherty | Spouse | — | 62 | ~1878 |
Census Appearances
1920
Bureau, Illinois
Son, age 14
Bureau, Illinois · implied b. ~1906 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flaherty |
| 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
Bureau, Illinois
Son, age 24
Bureau, Illinois · implied b. ~1906 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flaherty |
| Given Name | John F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Farm Laborer |
| Industry | Farming |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Bureau-County, Illinois
Son, age 34
Bureau-County, Illinois · implied b. ~1906 — 5 household members
| Surname | Flaherty |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Hall |
| 1935 Residence (County) | Bureau |
| Occupation | Farm Laborer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 52 |
| Income (1939) | 888 |
| Highest Grade | Hs 2 |
| 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 John Flaherty across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Flaherty (~0.92 confidence) and father Mike Flaherty (~0.92 confidence) and mother Mary Flaherty (~0.92 confidence) and mother Mary Flaherty (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Flaherty
b. ~1874
Source mother
● Household
· direct · ~0.92
Father
Mike Flaherty
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Mary Flaherty
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Mary Flaherty
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Flaherty
Son · 1940 · age 34 · b. ~1906 · Illinois
★ You are viewing this record
Sibling
Edmund Flaherty
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Flaherty
Sibling · 1940 · age 32
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 — Bureau-County, Illinois
Open full size
1940 US Federal Census — Bureau-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00762-00466)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Dave Mariani | 25 | Son | Farm Laborer | Illinois |
| 42 | James Mariani | 21 | Son | Truck Driver | Illinois |
| 43 | John Mariani | 15 | Son | Farm Laborer | Illinois |
| 44 | Ernest Malmquist | 62 | Head | Farmer | Sweden |
| 45 | Alma Malmquist | 52 | Wife | — | Sweden |
| 46 | Kenneth Malmquist | 25 | Son | Farm Laborer | Illinois |
| 47 | Gilbert Carlson | 28 | Head | Farmer | Illinois |
| 48 | Mabel Carlson | 27 | Wife | — | Illinois |
| 49 | Sheldon Carlson | 5 | Son | — | Illinois |
| 50 | Michael Manning | 75 | Head | Farmer | Illinois |
| 51 | Mike Flaherty | 64 | Head | Farmer | Illinois |
| 52 | Mary Flaherty | 62 | Wife | — | Illinois |
| 53 | John Flaherty THIS PERSON | 34 | Son | Farm Laborer | Illinois |
| 54 | Helen Flaherty | 32 | Daughter | — | Illinois |
| 55 | Edmund Flaherty | 26 | Son | Farm Laborer | Illinois |
| 56 | Nathan Dabo | 54 | Head | Farmer | Illinois |
| 57 | Lillian Dabo | 54 | Wife | — | Illinois |
| 58 | Millie Kinder | 43 | Head | Bookkeeper | Illinois |
| 59 | Preston Kinder | 39 | Brother | Interior Decorator | Illinois |
| 60 | Gustave Pinter | 60 | Head | Blacksmith | Illinois |
| 61 | Kathryn Pinter | 53 | Wife | — | Illinois |
| 62 | Gilbert Pinter | 23 | Son | Welder | Illinois |
| 63 | Frank Goetz | 43 | Head | Farmer | Illinois |
| 64 | Evelyn Goetz | 31 | Wife | — | Illinois |
| 65 | Robert Goetz | 9 | Son | — | Illinois |
| 66 | Leo Smalley | 36 | Hired Hand | Farm Laborer | Illinois |
| 67 | Nicholas Dorn | 74 | Head | Farm Laborer | Illinois |
| 68 | Joseph Sodnick | 66 | Head | Farmer | Poland |
| 69 | Annie Sodnick | 57 | Wife | — | Illinois |
| 70 | Julia Sodnick | 20 | Son | Farm Laborer | Illinois |
| 71 | Ilmac Redfern | 53 | Head | Farmer | Illinois |
| 72 | Alice Redfern | 55 | Wife | — | Illinois |
| 73 | Lyle Redfern | 17 | Son | Student | Illinois |
| 74 | Cletus Koster | 25 | Head | Farmer | Illinois |
| 75 | Edith Koster | 27 | Wife | — | Illinois |
| 76 | Sharon Lee Koster | 1 | Daughter | — | Illinois |
| 77 | Donna M Koster | 0 | Daughter | — | Illinois |
| 78 | Anna Eiten | 72 | Head | — | Illinois |
| 79 | Mathilda Billard | 45 | Servant | Servant | Kansas |
| 80 | William Weber | 41 | Head | Farmer | Illinois |
Pedigree Summary
John + 2 siblings
Gen 1 · 4 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)