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James Mcguire — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this James Mcguire across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 11-person household.
Age 16
b. ~1924
Male
Son
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | McGuire |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H-3 |
| 1935 Residence | Same Place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | Chicago |
| Est. Birth Year | ~1924 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Rosaleen Mcguire | Daughter | — | 18 | ~1922 |
| Catherine Mcguire | Daughter | — | 6 | ~1934 |
| Margaret Mcguire | Daughter | — | 20 | ~1920 |
| Norane Mcguire | Daughter | — | 10 | ~1930 |
| Letitia Mcguire | Daughter | — | 14 | ~1926 |
| Eileen Mcguire | Daughter | — | 12 | ~1928 |
| Frank Mcguire | Head | — | 53 | ~1887 |
| Joseph Mcguire | Son | — | 3 | ~1937 |
| Francis Mcguire | Son | — | 8 | ~1932 |
| James Mcguire | Son | — | 16 | ~1924 |
| Letitia Mcguire | Spouse | — | 45 | ~1895 |
Census Appearances
1930
Cook, Illinois
Son, age 6
Cook, Illinois · implied b. ~1924 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGuire |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Ireland North |
| Mother's Birthplace | Ireland North |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Cook-County, Illinois
Son, age 16
Cook-County, Illinois · implied b. ~1924 — 11 household members
| Surname | McGuire |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Income (1939) | 0 |
| Highest Grade | H-3 |
| 1935 Residence | Same Place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Mcguire across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Mcguire
Son · 1940 · age 16 · b. ~1924 · Illinois
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Sibling
Joseph Mcguire
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Mcguire
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rosaleen Mcguire
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Mcguire
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Mcguire
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Norane Mcguire
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eileen Mcguire
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Letitia Mcguire
Sibling · 1940 · age 14
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
39 people indexed on this census page (nara:1940:m-t0627-00950-00700)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph J Evans | 32 | Head | Chauffeur | Illinois |
| 2 | Rose Evans | 32 | Wife | — | Wisconsin |
| 3 | Rose M Evans | 11 | Daughter | — | Illinois |
| 4 | Joseph Jr Evans | 6 | Son | — | Illinois |
| 5 | John Evans | 5 | Son | — | Illinois |
| 6 | Mary Coughlin | 74 | Head | — | England |
| 7 | Helen Coughlin | 33 | Daughter | Office Work | Illinois |
| 8 | Frank Mcguire | 53 | Head | Laborer | Ireland |
| 9 | Letitia Mcguire | 45 | Wife | — | Ireland |
| 10 | Margaret Mcguire | 20 | Daughter | — | Ireland |
| 11 | Rosaleen Mcguire | 18 | Daughter | New Worker | Ireland |
| 12 | James Mcguire THIS PERSON | 16 | Son | — | Missouri |
| 13 | Letitia Mcguire | 14 | Daughter | — | Missouri |
| 14 | Eileen Mcguire | 12 | Daughter | — | Missouri |
| 15 | Norane Mcguire | 10 | Daughter | — | Illinois |
| 16 | Francis Mcguire | 8 | Son | — | Illinois |
| 17 | Catherine Mcguire | 6 | Daughter | — | Illinois |
| 18 | Joseph Mcguire | 3 | Son | — | Illinois |
| 19 | William H Crosley | 45 | Head | Millwright | Indiana |
| 20 | Margaret J Crosley | 43 | Wife | — | Indiana |
| 21 | Albert Prewanger | 39 | Head | Assemble Line | Minnesota |
| 22 | Anna M Prewanger | 36 | Wife | — | Indiana |
| 23 | Albert Jr Prewanger | 3 | Son | — | Illinois |
| 24 | John Dawson | 57 | Head | Steam Fitter | Illinois |
| 25 | Clara E Dawson | 51 | Wife | — | Illinois |
| 26 | Earl Dawson | 27 | Son | Brake Lining | Washington |
| 27 | Harriet Dawson | 19 | Daughter | Wrapper | Illinois |
| 28 | Kenneth Dawson | 7 | Son | — | Illinois |
| 29 | John Conners | 74 | Head | Truck Driver | Indiana |
| 30 | Alice M Conners | 28 | Wife | — | Indiana |
| 31 | Rose Marie Conners | 10 | Daughter | — | Illinois |
| 32 | John Jr Conners | 7 | Son | — | Illinois |
| 33 | Lorraine Conners | 5 | Daughter | — | Illinois |
| 34 | William Smith | 67 | Head | Watchman | England |
| 35 | Harriett Smith | 47 | Wife | — | Illinois |
| 36 | Raymond Smith | 20 | Son | Laborer | Illinois |
| 37 | Frances Mahoney | 25 | Daughter | Labeler | Illinois |
| 38 | Daniel Mahoney | 5 | Grandson | — | Illinois |
| 39 | Catherine Sheward | 70 | Head | — | 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)