JM
James Mcdonald — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cook, Illinois
Our Model Tree links this James Mcdonald across the 1910, 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed), with identified parents Thomas & Thomas — first a son (b.~1910), then head of a 6-person household.
Age 20
b. ~1910
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | McDonald |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Canada |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Occupation | Helper |
| Industry | Stock Room |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Helper |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1910 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Meta Mcdonald | Daughter | — | 14 | ~1916 |
| Thomas Mcdonald | Head | — | 52 | ~1878 |
| Thomas Mcdonald | Son | — | 15 | ~1915 |
| Walter Mcdonald | Son | — | 16 | ~1914 |
| James Mcdonald | Son | — | 20 | ~1910 |
| Anna Mcdonald | Spouse | — | 42 | ~1888 |
Census Appearances
1910
Cook, Illinois
Son, age 1
Cook, Illinois · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonald |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Can. English |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Cook, Illinois
Son, age 10
Cook, Illinois · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonald |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Canada |
| Mother's Birthplace | Illinois |
| Occupation | none |
| 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
Son, age 20
Cook, Illinois · implied b. ~1910 — 6 household members
| Surname | McDonald |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Canada |
| Mother's Birthplace | Illinois |
| Occupation | Helper |
| Industry | Stock Room |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| 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 James Mcdonald across 3 US Census years (1910, 1920 and 1930) in Cook, Illinois, using XGBoost record linkage. Identified parents: father Thomas Mcdonald (~0.92 confidence) and father Thomas Mcdonald (~0.92 confidence) and mother Anna Mcdonald (~0.92 confidence) and mother Anna Mcdonald (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Mcdonald
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Thomas Mcdonald
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Anna Mcdonald
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Anna Mcdonald
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Mcdonald
Son · 1930 · age 20 · b. ~1910 · Illinois
★ You are viewing this record
Sibling
Thomas Mcdonald
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Meta Mcdonald
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Mcdonald
Sibling · 1930 · age 16
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
1930 US Federal Census — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel437:0795)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Thomas Nolan | 32 | Head | Helper | Illinois |
| 52 | Katherine Nolan | 26 | Wife | — | Illinois |
| 53 | Thomas Nolan | 5 | Son | — | Illinois |
| 54 | Deloris Nolan | 3 | Daughter | — | Illinois |
| 55 | John Nolan | 1 | Son | — | Illinois |
| 56 | Nellie Kileen | 71 | Head | Housework | Ireland |
| 57 | Helen Kileen | 38 | Daughter | — | Illinois |
| 58 | Cassie Kileen | 38 | Daughter | — | Illinois |
| 59 | Donald Brode | 57 | Head | Engineer | Illinois |
| 60 | Eva Brode | 46 | Wife | Maid | Illinois |
| 61 | Earl Brode | 25 | Son | — | Illinois |
| 62 | Leone Brode | 26 | Daughter | — | Illinois |
| 63 | John Brode | 14 | Son | Helper | Illinois |
| 64 | Felix Brode | 15 | Son | — | Illinois |
| 65 | James Brode | 14 | Son | — | Illinois |
| 66 | Harold Brode | 12 | Son | — | Illinois |
| 67 | Bernice Brode | 10 | Daughter | — | Illinois |
| 68 | Ralph Brode | 8 | Son | — | Illinois |
| 69 | Mary Nicholas | 60 | Head | — | Illinois |
| 70 | Mary Moran | 45 | Head | Steam Fitter | New York |
| 71 | John Moran | 59 | Son | Operator | Illinois |
| 72 | Marie Moran | 21 | Daughter | Operator | Illinois |
| 73 | Agnes Moran | 19 | Daughter | Helper | Illinois |
| 74 | Margaret Moran | 17 | Daughter | — | Illinois |
| 75 | Lillian Moran | 16 | Daughter | — | Illinois |
| 76 | Veronica Moran | 13 | Daughter | — | Illinois |
| 77 | Evelyn Moran | 10 | Daughter | — | Illinois |
| 78 | Mary Rose | 50 | Head | Housework | Illinois |
| 79 | Martin Coffee | 40 | Head | Helper | Illinois |
| 80 | Marie Coffee | 35 | Wife | — | Illinois |
| 81 | John Coffee | 19 | Son | Clerk | Illinois |
| 82 | Thomas Mcdonald | 52 | Head | Carpenter | Canada |
| 83 | Anna Mcdonald | 42 | Wife | — | Illinois |
| 84 | James Mcdonald THIS PERSON | 20 | Son | Helper | Illinois |
| 85 | Thomas Mcdonald | 15 | Son | Helper | Illinois |
| 86 | Walter Mcdonald | 16 | Son | — | Illinois |
| 87 | Meta Mcdonald | 14 | Daughter | — | Illinois |
| 88 | David C. La Vine | 40 | Head | Salesman | Iowa |
| 89 | Edith La Vine | 33 | Wife | — | Illinois |
| 90 | Renea La Vine | 12 | Daughter | — | Illinois |
| 91 | Betty La Vine | 2 | Daughter | — | Illinois |
| 92 | Joseph La Vine | 4 | Son | — | Illinois |
| 93 | Bernice Featone | 17 | Servant | Housekeeper | Tennessee |
| 94 | — | None | — | — | — |
| 95 | — | None | — | — | — |
| 96 | — | None | — | — | — |
| 97 | — | None | — | — | — |
| 98 | — | None | — | — | — |
| 99 | — | None | — | — | — |
| 100 | — | None | — | — | — |
Related Census Records
Pedigree Summary
James + 3 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 1930 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)