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John Mcmullen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kane-County, Illinois
Our Model Tree links this John Mcmullen across the 1920, 1930 and 1940 US Censuses in Kane-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1860), then head of a 3-person household.
Age 80
b. ~1860
Male
Head
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Kane-County, Illinois |
| Surname | McMullen |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 80 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Aurora City |
| 1935 Residence (County) | Kane |
| Naturalization Status | First papers filed |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Aurora City |
| Est. Birth Year | ~1860 |
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 |
|---|---|---|---|---|
| Anna Ferriss | Daughter | — | 32 | ~1908 |
| John Mcmullen | Head | — | 80 | ~1860 |
| Judy Mcmullen | Spouse | — | 70 | ~1870 |
Census Appearances
1920
Kane, Illinois
Head, age 58
Kane, Illinois · implied b. ~1862 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McMullen |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1880 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Blacksmith |
| Industry | Steam Railroad |
| Class of Worker | R |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Ireland |
| Year of Naturalization | 1885 |
| Birthplace (normalized) | ireland |
1930
Kane, Illinois
Head, age 68
Kane, Illinois · implied b. ~1862 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McMullen |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 68 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1889 |
| Age at First Marriage | 24 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Blacksmith |
| Industry | Rail Road |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | 4,000 |
| Home Value / Rent | No |
| Radio Set | No |
| Veteran | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Kane-County, Illinois
Head, age 80
Kane-County, Illinois · implied b. ~1860 — 3 household members
| Surname | McMullen |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 80 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Aurora City |
| 1935 Residence (County) | Kane |
| Naturalization Status | First papers filed |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Mcmullen across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Mcmullen
Head · 1940 · age 80 · b. ~1860 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Kane-County, Illinois
Open full size
1940 US Federal Census — Kane-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00819-00582)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Norma Martin | 5 | Daughter | — | Illinois |
| 2 | Leland Baker | 31 | Head | Cushion Stuffer | Tennessee |
| 3 | Edna Baker | 24 | Wife | — | Tennessee |
| 4 | Nathan Douglass | 15 | Brother-in-law | — | Tennessee |
| 5 | Cecil Jones | 45 | Head | Store Room Clerk | Illinois |
| 6 | Hazel Jones | 45 | Wife | — | Illinois |
| 7 | Irene Jones | 18 | Daughter | — | Illinois |
| 8 | Iris Jones | 17 | Daughter | — | Illinois |
| 9 | Barbara Jones | 8 | Daughter | — | Illinois |
| 10 | John Mcmullen THIS PERSON | 80 | Head | — | Ireland |
| 11 | Judy Mcmullen | 70 | Wife | — | Massachusetts |
| 12 | Anna Ferriss | 32 | Daughter | Operator | Illinois |
| 13 | Stanley Newkirch | 21 | Head | Clerk | Illinois |
| 14 | Norma Newkirch | 18 | Wife | — | Illinois |
| 15 | Judith Newkirch | 0 | Daughter | — | Illinois |
| 16 | Edward Hayes | 49 | Head | Laborer | Illinois |
| 17 | Anna Hayes | 54 | Wife | — | California |
| 18 | Edward Hayes | 22 | Son | Laborer | Illinois |
| 19 | Janet Hayes | 20 | Wife | — | Illinois |
| 20 | Theodore Hawker | 63 | Head | Press Opr. | Illinois |
| 21 | Casper Bethmary | 52 | Head | Laborer | Russia |
| 22 | Susan Bethmary | 53 | Wife | Laborer | Russia |
| 23 | Joe Dunowskay | 63 | Head | — | Lithuania |
| 24 | Anna Dunowskay | 63 | Wife | — | Lithuania |
| 25 | Anna Dunowskay | 27 | Daughter | — | Illinois |
| 26 | Bert Wilson | 47 | Head | Trucker | Illinois |
| 27 | Lucille Wilson | 25 | Wife | — | Arkansas |
| 28 | Nathaniel Wilson | 3 | Son | — | Illinois |
| 29 | Bert Jr. Wilson | 1 | Son | — | Illinois |
| 30 | Bert L. Wilson | 5 | Son | — | Illinois |
| 31 | Jerry Wilson | 0 | Son | — | Illinois |
| 32 | Samuel Thompson | 53 | Head | Attendant | Kentucky |
| 33 | Frances Thompson | 53 | Wife | — | Illinois |
| 34 | Louie Wallace | 81 | Mother-in-law | — | Illinois |
| 35 | John Schindlbeck | 48 | Head | Drill Press | Germany |
| 36 | Mary Schindlbeck | 46 | Wife | — | Illinois |
| 37 | John Schindlbeck | 21 | Son | Baker | Illinois |
| 38 | Marilyn Schindlbeck | 15 | Daughter | — | Illinois |
| 39 | Dolores Schindlbeck | 12 | Daughter | — | Illinois |
| 40 | Joan Schindlbeck | 5 | Daughter | — | Illinois |
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)