TM
Thomas Mcdonald — 1940 US Census Record
Model Tree available1940 United States Federal Census · King-County, Washington
Our Model Tree links this Thomas Mcdonald across the 1920, 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed), with identified parents Alexander & Ora — first a head (b.~1910), then head of a 5-person household.
Age 30
b. ~1910
Male
Head
Born: Washington
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | McDonald |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Additional Details | |
| Occupation | Owner |
| Industry | Meat Market |
| Class of Worker | OA |
| Hours Worked | 54 |
| Income (1939) | 614 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Owner |
| Township / Ward | Seattle 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Telma Mcdonald | Spouse | — | 24 | ~1916 |
| Thomas Mcdonald | Head | — | 30 | ~1910 |
| Georgette Mcdonald | Daughter | — | 4 | ~1936 |
| Jacqueline Mcdonald | Daughter | — | 8 | ~1932 |
| Clara Mcdonald | Other | — | 50 | ~1890 |
Census Appearances
1920
King, Washington
Son, age 10
King, Washington · implied b. ~1910 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonald |
| Given Name | Tom |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Canada |
| Mother's Birthplace | Nebraska |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
King, Washington
Son, age 21
King, Washington · implied b. ~1909 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonald |
| Given Name | Thomas |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Nebraska |
| Occupation | Butcher |
| Industry | Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
King-County, Washington
Head, age 30
King-County, Washington · implied b. ~1910 — 5 household members
| Surname | McDonald |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Occupation | Owner |
| Industry | Meat Market |
| Class of Worker | OA |
| Hours Worked | 54 |
| Income (1939) | 614 |
| Highest Grade | H 2 |
| 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 Thomas Mcdonald across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Alexander Mcdonald (~0.92 confidence) and mother Ora Mcdonald (~0.92 confidence) and mother Ora Mcdonald (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alexander Mcdonald
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Ora Mcdonald
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Ora Mcdonald
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Mcdonald
Head · 1940 · age 30 · b. ~1910 · Washington
★ 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 — 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-t0627-04381-00175)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Rosina Kipper | 27 | Wife | — | Washington |
| 2 | Judy Kipper | 5 | Daughter | — | Washington |
| 3 | Frank Mckinzie | 37 | Head | Sales Manager | Washington |
| 4 | Ruth Mckinzie | 33 | Wife | — | Iowa |
| 5 | Barbara Mckinzie | 10 | Daughter | — | Washington |
| 6 | Thomas Mcdonald THIS PERSON | 30 | Head | Owner | Washington |
| 7 | Telma Mcdonald | 24 | Wife | — | Rhode Island |
| 8 | Jacqueline Mcdonald | 8 | Daughter | — | Washington |
| 9 | Georgette Mcdonald | 4 | Daughter | — | Washington |
| 10 | Clara Mcdonald | 50 | Mother | Buyer | Nebraska |
| 11 | Wilfred Green | 48 | Head | Salesman | England |
| 12 | Alice Green | 49 | Wife | — | New York |
| 13 | Peter S. Green | 22 | Son | Switch Board Op. | Canada |
| 14 | Marjorie Green | 20 | Daughter | Stenographer | Canada |
| 15 | John Walter Hagg | 68 | Head | Electrician | Canada |
| 16 | Bert Chatterton | 36 | Head | Glass Blower | Michigan |
| 17 | Nell Chatterton | 35 | Wife | — | Colorado |
| 18 | Lida Leblane | 69 | Head | — | Tennessee |
| 19 | Here Ends | None | Block | — | — |
| 20 | Otto F. Berg | 46 | Head | Bookkeeper | Minnesota |
| 21 | Conrad J. Johnson | 44 | Head | Foreman | Washington |
| 22 | Hazel Johnson | 41 | Wife | — | Iowa |
| 23 | Conrad Jr. Johnson | 25 | Son | — | Washington |
| 24 | Ellen C. Johnson | 3 | Daughter | — | Washington |
| 25 | Robert Barber | 63 | Head | Electric Light Com. | Canada-Eng |
| 26 | Mina Barber | 59 | Wife | — | Canada-Eng |
| 27 | Donald R. Barber | 27 | Son | Commercial Artist | Washington |
| 28 | Herman Ginsburg | 61 | Head | Painter & Dec. | Wisconsin |
| 29 | Minnie Ginsburg | 58 | Wife | — | California |
| 30 | Eleanor F. Ginsburg | 20 | Daughter | Clerk-Saleswoman | Washington |
| 31 | Edward H. Cooper | 58 | Head | Electrician | Canada-Eng |
| 32 | Millicent H. Cooper | 60 | Sister | — | Canada-Eng |
| 33 | Robert E. Smith | 59 | Lodger | Writer-Musician | Missouri |
| 34 | Adolph Tietjen | 33 | Head | Mech. Draftsman | Washington |
| 35 | Pauline Tietjen | 66 | Wife | — | Iowa |
| 36 | James Thomas | 52 | Head | Owner | Ohio |
| 37 | Shella Thomas | 48 | Wife | Joint-Owner | Oregon |
| 38 | James Thomas | 15 | Son | — | Washington |
| 39 | Emille Cadillac | 38 | Head | Switchman | Idaho |
| 40 | Margaret Cadillac | 31 | Wife | — | Minnesota |
Pedigree Summary
Thomas
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)