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John Mullins — 1940 US Census Record
Model Tree available1940 United States Federal Census · Winnebago-County, Illinois
Our Model Tree links this John Mullins across the 1920, 1930 and 1940 US Censuses in Winnebago-County, Illinois (XGBoost, ~Confirmed), with identified parents Thomas & Margaret — first a son (b.~1905), then head of a 3-person household.
Age 35
b. ~1905
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Winnebago-County, Illinois |
| Surname | Mullins |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rockford City |
| 1935 Residence (County) | Winnebago |
| Additional Details | |
| Occupation | Stock-handler |
| Industry | Iron Machine Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 834 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Stock-Handler |
| Township / Ward | Rockford 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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Thomas Mullins | Head | — | 34 | ~1906 |
| John Mullins | Son | — | 35 | ~1905 |
| Chris Knot | Other | — | 44 | ~1896 |
Census Appearances
1920
Winnebago, Illinois
Son, age 14
Winnebago, Illinois · implied b. ~1906 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mullen |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
Son, age 24
Winnebago, Illinois · implied b. ~1906 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mullen |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Illinois |
| Occupation | Implement |
| Industry | Implement |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Winnebago-County, Illinois
Son, age 35
Winnebago-County, Illinois · implied b. ~1905 — 3 household members
| Surname | Mullins |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rockford City |
| 1935 Residence (County) | Winnebago |
| Occupation | Stock-handler |
| Industry | Iron Machine Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 834 |
| Highest Grade | Hs 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 John Mullins across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Mullen (~0.92 confidence) and mother Margaret Mullen (~0.92 confidence) and father Thomas Mullins (~0.50 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.78
Father
Thomas Mullen
b. ~1858
Source father
● Household
· direct · ~0.92
Mother
Margaret Mullen
b. ~1860
Source mother
● Household
· direct · ~0.92
Father
Thomas Mullins
b. ~1906
Source father
● Household
· direct · ~0.5
This person
Anchor record
John Mullins
Son · 1940 · age 35 · b. ~1905 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Winnebago-County, Illinois
Open full size
1940 US Federal Census — Winnebago-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00913-00360)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Slavinski | 53 | Lodger | Laborer | Lithuania |
| 2 | Comer Thomas | 54 | Head | Laborer | Greece |
| 3 | Jessie Thomas | 44 | Wife | — | Greece |
| 4 | Nick Thomas | 23 | Son | Laborer | Illinois |
| 5 | Mary Thomas | 21 | Daughter | Inspector | Illinois |
| 6 | James Thomas | 19 | Son | New Worker | Illinois |
| 7 | George Thomas | 17 | Son | — | Illinois |
| 8 | Constance Thomas | 16 | Daughter | New Worker | Illinois |
| 9 | Irene Thomas | 15 | Daughter | — | Illinois |
| 10 | Dolly Thomas | 12 | Daughter | — | Illinois |
| 11 | George Grentis | 46 | Head | Laborer | Greece |
| 12 | Helen Grentis | 44 | Wife | — | Michigan |
| 13 | Albert Grentis | 14 | Son | — | Illinois |
| 14 | George Grentis | 12 | Son | — | Illinois |
| 15 | Michael Alongi | 70 | Head | Yes | Italy |
| 16 | Josephine Alongi | 64 | Wife | — | Italy |
| 17 | Raymond Alongi | 28 | Son | Presser | Italy |
| 18 | Mary Alongi | 18 | Daughter | Elevator Operator | Illinois |
| 19 | Vincent Alongi | 36 | Head | Presser | Italy |
| 20 | Lena Alongi | 28 | Wife | Cabinet Maker | Louisiana |
| 21 | Michael Alongi | 7 | Son | — | Illinois |
| 22 | Carl Skribal | 47 | Head | Photographer | Russia |
| 23 | La Verne Fransen | 24 | Head | Assembler | Illinois |
| 24 | Antoinette Fransen | 24 | Wife | — | Lithuania |
| 25 | La Von Fransen | 2 | Daughter | — | Illinois |
| 26 | Marie Demote | 45 | Head | Yes | Italy |
| 27 | John Demote | 17 | Son | — | Illinois |
| 28 | Peter Demote | 12 | Son | — | Illinois |
| 29 | John Mcneil | 54 | Head | Laborer | Mississippi |
| 30 | Ellen Mcneil | 51 | Wife | — | Mississippi |
| 31 | Rosalie Mcneil | 17 | Daughter | — | Illinois |
| 32 | Alice Harris | 10 | Grand-daughter | — | Illinois |
| 33 | Nathaniel Harris | 8 | Grand-son | — | Illinois |
| 34 | Napoleon Harris | 6 | Grand-son | — | Illinois |
| 35 | Sam Parrevecchio | 24 | Head | Machinist | Illinois |
| 36 | June Parrevecchio | 20 | Wife | — | Illinois |
| 37 | Rosalie Parrevecchio | 0 | Daughter | — | Illinois |
| 38 | Thomas Mullins | 34 | Head | — | Unknown |
| 39 | John Mullins THIS PERSON | 35 | Son | Stock-Handler | Illinois |
| 40 | Chris Knot | 44 | Lodger | Laborer | Illinois |
Related Census Records
Pedigree Summary
John
Gen 1 · 3 parents
~0.78
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)