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John Mulligan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this John Mulligan across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents John & Ellen — first a head (b.~1897), then head of a 5-person household.
Age 43
b. ~1897
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Mulligan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Milkman |
| Industry | Dairy Co |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2400 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Milkman |
| Township / Ward | Chicago |
| Est. Birth Year | ~1897 |
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 |
|---|---|---|---|---|
| Marguerite Mulligan | Spouse | — | 37 | ~1903 |
| Alice Mulligan | Daughter | — | 9 | ~1931 |
| John Mulligan | Head | — | 43 | ~1897 |
| Mary Mulligan | Daughter | — | 18 | ~1922 |
| Jeanette Mulligan | Daughter | — | 12 | ~1928 |
Census Appearances
1920
Cook, Illinois
Son, age 22
Cook, Illinois · implied b. ~1898 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mulligan |
| Given Name | John Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Student |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Head, age 33
Cook, Illinois · implied b. ~1897 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mulligan |
| Given Name | John V. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 23 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 35 |
| Radio Set | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 43
Cook-County, Illinois · implied b. ~1897 — 5 household members
| Surname | Mulligan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Milkman |
| Industry | Dairy Co |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2400 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| 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 Mulligan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Carlson (~0.92 confidence) and mother Ellen Carlson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Carlson
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Ellen Carlson
b. ~1872
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Mulligan
Head · 1940 · age 43 · b. ~1897 · 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 — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-00959-00436)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John Jr Continued | 16 | Son | — | Illinois |
| 42 | Raymond Paye | 32 | Head | Machinist | Iowa |
| 43 | Dorothy A Paye | 32 | Wife | — | Iowa |
| 44 | Jean Paye | 4 | Daughter | — | Illinois |
| 45 | Gregory Paye | 1 | Son | — | Illinois |
| 46 | Paul Carasanto | 55 | Head | Janitor | Italy |
| 47 | Louise Carasanto | 52 | Wife | — | France |
| 48 | Mary Carasanto | 21 | Daughter | Filler | Illinois |
| 49 | Nancy Carasanto | 19 | Daughter | Beauty Operator | Illinois |
| 50 | Louise Carasanto | 18 | Daughter | Machine Operator | Illinois |
| 51 | Paul Carasanto | 15 | Son | — | Illinois |
| 52 | Pauline Carasanto | 12 | Daughter | — | Illinois |
| 53 | Marianne Carasanto | 5 | Daughter | — | Illinois |
| 55 | John Mulligan THIS PERSON | 43 | Head | Milkman | Illinois |
| 56 | Marguerite Mulligan | 37 | Wife | — | Illinois |
| 57 | Mary Mulligan | 18 | Daughter | Stenographer | Illinois |
| 58 | Jeanette Mulligan | 12 | Daughter | — | Illinois |
| 59 | Alice Mulligan | 9 | Daughter | — | Illinois |
| 60 | Theodore Johnston | 44 | Head | Electrical Salesman | Scotland |
| 61 | Elizabeth Johnston | 45 | Wife | — | Illinois |
| 62 | Kenneth Johnston | 14 | Son | — | Illinois |
| 64 | Fredrick M Clark | 40 | Head | Salesman | Wisconsin |
| 65 | Lillian Clark | 40 | Wife | — | Illinois |
| 66 | Fredrick T Clark | 20 | Son | Machine Operator | Illinois |
| 67 | Patricia M Clark | 17 | Daughter | Office Worker | Illinois |
| 68 | Lillian Ann Clark | 16 | Daughter | — | Illinois |
| 69 | Robert Q Clark | 15 | Son | — | Illinois |
| 70 | Delores Clark | 9 | Daughter | — | Illinois |
| 71 | Anna Andes | 60 | Mother in law | House Work | Germany |
| 72 | Ralph C Henneham | 32 | Head | Artist | Illinois |
| 73 | Marion Henneham | 31 | Wife | Stenographer | Illinois |
| 74 | David C Cory | 9 | Son | — | Illinois |
| 75 | Elizabeth Pfeifer | 84 | Mother in law | — | Germany |
| 76 | George Talbot | 38 | Head | Ticket Agent | Illinois |
| 77 | Ellen D Talbot | 35 | Wife | Teacher | Illinois |
| 78 | George Jr Talbot | 6 | Son | — | Illinois |
| 79 | Walter Anderson | 30 | Brother | Ticket Clerk | Illinois |
| 80 | Lewis H Mundorf | 40 | Head | Service Man Collector | Illinois |
Pedigree Summary
John
Gen 1 · 2 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)