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James Mcdonough — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this James Mcdonough across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1886), then head of a 6-person household.
Age 54
b. ~1886
Male
Head
Born: Irish Free State
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | McDonough |
| Given Name | James D. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Stationary Engineer |
| Industry | Steel Mills |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2400 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birthplace (normalized) | irish free state |
| Occupation | Stationary Engineer |
| Township / Ward | Chicago |
| Est. Birth Year | ~1886 |
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 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Eleanore Mcdonough | Daughter | — | 20 | ~1920 |
| Agnes Mcdonough | Spouse | — | 50 | ~1890 |
| James Mcdonough | Head | — | 54 | ~1886 |
| Austin Mcdonough | Son | — | 24 | ~1916 |
| James Mcdonough | Son | — | 16 | ~1924 |
| Kathryn Mcdonough | Daughter | — | 22 | ~1918 |
Census Appearances
1930
Cook, Illinois
Head, age 45
Cook, Illinois · implied b. ~1885 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonough |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| Naturalization Status | First papers filed |
| Year of Immigration | 1923 |
| Age at First Marriage | 23 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 4000 |
| Radio Set | R |
| Veteran | No |
| Birthplace (normalized) | irish free state |
1940
Cook-County, Illinois
Head, age 54
Cook-County, Illinois · implied b. ~1886 — 6 household members
| Surname | McDonough |
| Given Name | James D. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Occupation | Stationary Engineer |
| Industry | Steel Mills |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2400 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birthplace (normalized) | irish free state |
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 Mcdonough across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
James Mcdonough
Head · 1940 · age 54 · b. ~1886 · 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
40 people indexed on this census page (nara:1940:m-t0627-00937-00234)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Cecilia Sullivan | 40 | Wife | Saleslady | Wisconsin |
| 42 | George P. Sullivan | 13 | Son | — | New York |
| 43 | James J. Sullivan | 2 | Son | — | Illinois |
| 44 | Marie Knar | 28 | Sister in law | Saleslady | Wisconsin |
| 45 | Frederick Hammore | 52 | Head | Physician Surgeon | Minnesota |
| 46 | Amelia C. Hammore | 42 | Wife | — | Wisconsin |
| 47 | Frederick C. Hammore | 14 | Son | — | Illinois |
| 48 | Robert C. Hammore | 9 | Son | — | Illinois |
| 49 | Mary L. Hammore | 82 | Mother | — | Missouri |
| 50 | Robert J. Donahue | 26 | Head | Salesman | Illinois |
| 51 | Charlotte S. Donahue | 25 | Wife | — | Wisconsin |
| 52 | Robert J. Jr. Donahue | 1 | Son | — | Illinois |
| 53 | Sophia W. Runsen | 27 | Maid | Maid | Michigan |
| 54 | William Neale | 41 | Head | Physician Surgeon | Maryland |
| 55 | Helen C. Neale | 37 | Wife | — | Nebraska |
| 56 | William D. Neale | 20 | Son | — | Illinois |
| 57 | Robert D. Neale | 15 | Son | — | Illinois |
| 58 | Elizabeth A. Neale | 12 | Daughter | — | Illinois |
| 59 | James D. Mcdonough THIS PERSON | 54 | Head | Stationary Engineer | Irish Free State |
| 60 | Agnes Mcdonough | 50 | Wife | — | Irish Free State |
| 61 | Austin E. Mcdonough | 24 | Son | Gas Pressure Regulator | Illinois |
| 62 | Kathryn M. Mcdonough | 22 | Daughter | Registered Nurse | Illinois |
| 63 | Eleanore A. Mcdonough | 20 | Daughter | Telephone Operator | Illinois |
| 64 | James A. Jr. Mcdonough | 16 | Son | — | Illinois |
| 65 | Anthony Dopke | 34 | Head | Office Supplies Salesman | Illinois |
| 66 | Margaret Dopke | 33 | Wife | — | Illinois |
| 67 | William Dopke | 8 | Son | — | Illinois |
| 68 | Joanne Dopke | 6 | Daughter | — | Illinois |
| 69 | Denise Dopke | 4 | Daughter | — | Illinois |
| 70 | Marcia Dopke | 1 | Daughter | — | Illinois |
| 71 | Ila Elzerama | 17 | Maid | Maid | Illinois |
| 72 | Rollin Benedict | 42 | Head | Draftsman | Illinois |
| 73 | Mildred Benedict | 30 | Wife | — | Ohio |
| 74 | Jerry Benedict | 9 | Son | — | Illinois |
| 75 | Lydia Sturdevant | 60 | Mother in law | — | Pennsylvania |
| 76 | Ida C. Wallin | 63 | Head | — | Sweden |
| 77 | Myrtle M. Wallin | 41 | Daughter | — | Illinois |
| 78 | Carl R. Nylen | 40 | Head | Office Clerk | Illinois |
| 79 | Victoria C. Nylen | 34 | Wife | — | Michigan |
| 80 | Charles R. Nylen | 8 | Son | — | 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)