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James Mcdonough — 1940 US Census Record
Linked across censuses1940 United States Federal Census · King-County, Washington
Our Model Tree links this James Mcdonough across the 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 7-person household.
Age 12
b. ~1928
Male
Son
Born: Washington
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | McDonough |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same Place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Township / Ward | Seattle City |
| Est. Birth Year | ~1928 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Ray Mcdonough | Son | — | 14 | ~1926 |
| James Mcdonough | Son | — | 12 | ~1928 |
| Jack Mcdonough | Son | — | 18 | ~1922 |
| Helen Mcdonough | Daughter | — | 20 | ~1920 |
| Michael Mcdonough | Head | — | 53 | ~1887 |
| Frank Mcdonough | Son | — | 16 | ~1924 |
| Mae Mcdonough | Spouse | — | 44 | ~1896 |
Census Appearances
1930
King, Washington
Son, age 2
King, Washington · implied b. ~1928 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonough |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Washington |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
King-County, Washington
Son, age 12
King-County, Washington · implied b. ~1928 — 7 household members
| Surname | McDonough |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same Place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
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.
Show:
This person
Anchor record
James Mcdonough
Son · 1940 · age 12 · b. ~1928 · Washington
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Sibling
Ray Mcdonough
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Mcdonough
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Mcdonough
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jack Mcdonough
Sibling · 1940 · age 18
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 — King-County, Washington
Open full size
1940 US Federal Census — King-County, Washington
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04379-00271)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Meyer Johnson | 31 | Head | Cattle Merchant | Washington |
| 2 | Mildred (X) Johnson | 24 | Wife | — | Washington |
| 3 | Carol Johnson | 3 | Daughter | — | Washington |
| 4 | Andrew Young | 58 | Head | — | S. Dakota |
| 5 | Gladys Young | 57 | Wife | — | Canada |
| 6 | Sterling B. Hill | 64 | Head | Civil Engineer | California |
| 7 | Sylvia (X) Hill | 62 | Wife | — | Nebraska |
| 8 | Eugene S. Hill | 20 | Son | — | Washington |
| 9 | Michael Mcdonough | 53 | Head | Storekeeper | Iowa |
| 10 | Mae W. Mcdonough | 44 | Wife | — | Washington |
| 11 | Helen Mcdonough | 20 | Daughter | Receptionist | Washington |
| 12 | Jack Mcdonough | 18 | Son | — | Washington |
| 13 | Frank Mcdonough | 16 | Son | — | Washington |
| 14 | Ray Mcdonough | 14 | Son | — | Washington |
| 15 | James Mcdonough THIS PERSON | 12 | Son | — | Washington |
| 16 | Charles Montiero | 43 | Head | Lieutenant | Massachusetts |
| 17 | Victoria Montiero | 39 | Wife | — | Louisiana |
| 18 | John Montiero | 12 | Son | — | Louisiana |
| 19 | Gloria Montiero | 10 | Daughter | — | Louisiana |
| 20 | Charles Montiero | 8 | Son | — | Louisiana |
| 21 | Lucy Montiero | 7 | Daughter | — | Louisiana |
| 22 | Anna Montiero | 3 | Daughter | — | Louisiana |
| 23 | Florence Stokke | 46 | Servant | Servant | New York |
| 24 | Geraldine Stokke | 14 | Daughter | — | Washington |
| 25 | Max Bogle | 60 | Head | Clerk | Mississippi |
| 26 | Claire Bogle | 57 | Wife | Broker | Mississippi |
| 27 | Beatrice Porter | 44 | Lodger | Nurse | Washington |
| 28 | Kathrine Donovan | 67 | Head | — | Washington |
| 29 | Julia (X) Donovan | 47 | Daughter | Clerk | Ohio |
| 30 | Patricia Donovan | 36 | Daughter | Clerk | Canada-English |
| 31 | Marie Carlson | 43 | Daughter | Stenographer | Canada-English |
| 32 | Joseph Carlson | 10 | Son | — | Washington |
| 33 | — | None | — | — | — |
| 34 | Julius (X) Hegert | 76 | Head | Proprietor | Germany |
| 35 | Marguerita Hegert | 76 | Wife | — | Germany |
| 36 | Doris Hemerick | 34 | Daughter | — | Washington |
| 37 | Sarah W. Rosenthal | 57 | Head | — | New York |
| 38 | Flora Rosenthal | 35 | Daughter | Law Clerk | Washington |
| 39 | Myron S. Rosenthal | 22 | Son | — | Washington |
| 40 | Annette Rosenthal | 20 | Daughter | Stenographer | Washington |
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)