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James Mcdermott — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Dekalb-County, Illinois
Our Model Tree links this James Mcdermott across the 1930 and 1940 US Censuses in Dekalb-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1894), then head of a 9-person household.
Age 46
b. ~1894
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Dekalb-County, Illinois |
| Surname | McDermott |
| Given Name | James B |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | De Kalb |
| 1935 Residence (County) | De Kalb |
| Additional Details | |
| Occupation | laborer truck driver |
| Industry | W.P.A. project |
| Class of Worker | GW |
| Income (1939) | 988 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Laborer Truck Driver |
| Township / Ward | De Kalb |
| Est. Birth Year | ~1894 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Frances Mcdermott | Daughter | — | 18 | ~1922 |
| James Mcdermott | Head | — | 46 | ~1894 |
| Leo Mcdermott | Son | — | 16 | ~1924 |
| Henry Mcdermott | Son | — | 14 | ~1926 |
| Raymond Mcdermott | Son | — | 22 | ~1918 |
| John Mcdermott | Son | — | 2 | ~1938 |
| James Mcdermott | Son | — | 12 | ~1928 |
| Patrick Mcdermott | Son | — | 8 | ~1932 |
| Celina Mcdermott | Spouse | — | 44 | ~1896 |
Census Appearances
1930
Dekalb, Illinois
Head, age 35
Dekalb, Illinois · implied b. ~1895 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDermott |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 20 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Rope Drive |
| Industry | Cab Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 18 |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Dekalb-County, Illinois
Head, age 46
Dekalb-County, Illinois · implied b. ~1894 — 9 household members
| Surname | McDermott |
| Given Name | James B |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | De Kalb |
| 1935 Residence (County) | De Kalb |
| Occupation | laborer truck driver |
| Industry | W.P.A. project |
| Class of Worker | GW |
| Income (1939) | 988 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| 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 Mcdermott across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
James Mcdermott
Head · 1940 · age 46 · b. ~1894 · 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 — Dekalb-County, Illinois
Open full size
1940 US Federal Census — Dekalb-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00793-00487)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Paul B Talbot | 52 | Head | Salesman | Illinois |
| 42 | Grace P Talbot | 42 | Wife | — | Iowa |
| 43 | Emily Ann Talbot | 20 | Daughter | — | Iowa |
| 44 | Ray Talbot | 19 | Son | Tone Regulator | Iowa |
| 45 | Jean Talbot | 17 | Daughter | — | Iowa |
| 46 | Mari Lee Talbot | 15 | Daughter | — | Iowa |
| 47 | Richard Talbot | 11 | Son | — | Iowa |
| 48 | Larry Talbot | 8 | Son | — | Iowa |
| 49 | William John B Reid | 65 | Head | — | Illinois |
| 50 | Eva Reid | 19 | Daughter | Weaver | Illinois |
| 51 | Evans Ferguson | 28 | Son-in-law | Salesman | Illinois |
| 52 | Mary Ferguson | 26 | Daughter | — | Illinois |
| 53 | William Ferguson | 1 | Son | — | Illinois |
| 54 | Percy Ruxton | 37 | Head | Owner | Illinois |
| 55 | Gerda B Ruxton | 35 | Wife | — | Illinois |
| 56 | Joyce Ruxton | 7 | Daughter | — | Illinois |
| 57 | Richard Ruxton | 3 | Son | — | Illinois |
| 58 | Elmer D Burke | 41 | Head | Laborer | Illinois |
| 59 | Gertrude Burke | 30 | Wife | — | Norway |
| 60 | Mylo Burke | 11 | Son | — | Illinois |
| 61 | Violet Burke | 8 | Daughter | — | Illinois |
| 62 | Norman Burke | 2 | Son | — | Illinois |
| 63 | James B Mcdermott THIS PERSON | 46 | Head | Laborer Truck Driver | Illinois |
| 64 | Celina Mcdermott | 44 | Wife | — | Canada-French |
| 65 | Raymond Mcdermott | 22 | Son | Solderer | Canada-French |
| 66 | Frances Mcdermott | 18 | Daughter | Packer | Canada-French |
| 67 | Leo Mcdermott | 16 | Son | — | Canada-French |
| 68 | Henry Mcdermott | 14 | Son | — | Illinois |
| 69 | James Jr. Mcdermott | 12 | Son | — | Illinois |
| 70 | Patrick Mcdermott | 8 | Son | — | Illinois |
| 71 | John Mcdermott | 2 | Son | — | Illinois |
| 72 | Leslie D Cutlip | 47 | Head | Laborer | Illinois |
| 73 | Hazel Cutlip | 43 | Wife | — | Missouri |
| 74 | Velma Mae Cutlip | 8 | Daughter | — | Illinois |
| 75 | Cora Cutlip | 65 | Daughter | — | Illinois |
| 76 | Robert D Pagitt | 39 | Head | — | Illinois |
| 77 | Effy Pagitt | 34 | Wife | Farmer | Illinois |
| 78 | Robert Jr. Pagitt | 5 | Son | — | Illinois |
| 79 | Linda Lou Pagitt | 2 | Daughter | — | Illinois |
| 80 | Conrad Cook | 28 | Head | Expediter Production | 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)