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George Mcdonald — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this George Mcdonald across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents George & George — first a son (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | McDonald |
| Given Name | George |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | general office |
| Industry | railroad |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 780 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | General Office |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1918 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to George | Age | Birth yr |
|---|---|---|---|---|
| George Mcdonald | Son | — | 22 | ~1918 |
| Sarah Mcdonald | Spouse | — | 48 | ~1892 |
| George Mcdonald | Head | — | 49 | ~1891 |
| William Mcdonald | Son | — | 19 | ~1921 |
Census Appearances
1920
Cook, Illinois
Son, age 1
Cook, Illinois · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonall |
| Given Name | George |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Germany |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 11
Cook, Illinois · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonall |
| Given Name | George |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 22
Cook-County, Illinois · implied b. ~1918 — 4 household members
| Surname | McDonald |
| Given Name | George |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | general office |
| Industry | railroad |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 780 |
| Highest Grade | Hs 4 |
| 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 George Mcdonald across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Mcdonald (~0.92 confidence) and father George Mcdonall (~0.92 confidence) and father George Mcdonall (~0.92 confidence) and mother Alma Mcdonall (~0.92 confidence) and mother Lillian Mcdonall (~0.92 confidence) and mother Sarah Mcdonald (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Mcdonald
b. ~1891
Source father
● Household
· direct · ~0.92
Father
George Mcdonall
b. ~1891
Source father
● Household
· direct · ~0.92
Father
George Mcdonall
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Alma Mcdonall
b. ~1897
Source mother
● Household
· direct · ~0.92
Mother
Lillian Mcdonall
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Sarah Mcdonald
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
George Mcdonald
Son · 1940 · age 22 · b. ~1918 · Illinois
★ You are viewing this record
Sibling
William Mcdonald
Sibling · 1940 · age 19
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
40 people indexed on this census page (nara:1940:m-t0627-00984-00547)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Dominic Cassano | 40 | Head | Candy Maker | Italy |
| 42 | Rose Cassano | 32 | Wife | — | Italy |
| 43 | Lorraine Cassano | 15 | Daughter | — | Illinois |
| 44 | Margaret Cassano | 13 | Daughter | — | Illinois |
| 45 | Sarah Cassano | 10 | Daughter | — | Illinois |
| 46 | Michael Zaranti | 27 | Head | Candy Maker | Illinois |
| 47 | Delia Zaranti | 27 | Wife | Dressmaker | Illinois |
| 48 | Louis Fina | 23 | Lodger | Machinist | Illinois |
| 49 | Grace Fina | 22 | Lodger | Sales Clerk | Illinois |
| 50 | Grace Fina | 5 | Lodger Daughter | — | Illinois |
| 51 | Samuel Uretzky | 41 | Head | Dealer | Russia |
| 52 | Bertha Uretzky | 39 | Wife | — | Russia |
| 53 | Zena Uretzky | 15 | Daughter | — | Illinois |
| 54 | Adrienne Uretzky | 9 | Daughter | — | Illinois |
| 55 | Sima Constance | 68 | Lodger | — | Russia |
| 56 | Isadore Gilbert | 48 | Head | Milliner | Russia |
| 57 | Janine Gilbert | 47 | Wife | — | Russia |
| 58 | Irving Gilbert | 27 | Son | — | Illinois |
| 59 | Irving Schnyder | 27 | Son-Law | Driver | Hungary |
| 60 | Lillian Schnyder | 23 | Daughter | Typist | Illinois |
| 61 | Jacob Dress | 62 | Head | Operator | Illinois |
| 62 | Mary Dress | 58 | Wife | — | New York |
| 63 | Dora Lillenhurst | 76 | Head | — | Illinois |
| 64 | Bertha Lillenhurst | 45 | Daughter | Office Machine Operator | Illinois |
| 65 | Peter Ferrara | 69 | Head | Soldier | Germany |
| 66 | Josephine Ferrara | 69 | Wife | — | Germany |
| 67 | Herman Wilhelm | 34 | Son-Law | Manager | Iowa |
| 68 | Emily Wilhelm | 32 | Daughter | General Office | Illinois |
| 69 | August Horner | 71 | Head | — | Germany |
| 70 | Albertine Horner | 74 | Wife | — | Germany |
| 71 | Walter Quasick | 40 | Son-Law | Rate Clerk | Illinois |
| 72 | Margaret Quasick | 35 | Daughter | — | Illinois |
| 73 | Walter Quasick | 14 | Grandson | — | Illinois |
| 74 | Robert Quasick | 11 | Grandson | — | Illinois |
| 75 | Dolores Quasick | 11 | Granddaughter | — | Illinois |
| 76 | Joan Quasick | 6 | Granddaughter | — | Illinois |
| 77 | George Mcdonald | 49 | Head | Chauffeur | Illinois |
| 78 | Sarah Mcdonald | 48 | Wife | — | Germany |
| 79 | George Mcdonald THIS PERSON | 22 | Son | General Office | Illinois |
| 80 | William Mcdonald | 19 | Son | New Worker | Illinois |
Pedigree Summary
George + 1 sibling
Gen 1 · 6 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)