TM
Thomas Mcdonald — 1940 US Census Record
Model Tree available1940 United States Federal Census · Mason-County, Washington
Our Model Tree links this Thomas Mcdonald across the 1920, 1930 and 1940 US Censuses in Mason-County, Washington (XGBoost, ~Confirmed), with identified parents Mary & J — first a son (b.~1902), then head of a 3-person household.
Age 38
b. ~1902
Male
Son
Born: Washington
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mason-County, Washington |
| Surname | McDonald |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Kamilche Precinct |
| 1935 Residence (County) | Mason |
| Additional Details | |
| Occupation | Scaler |
| Industry | Timber Company |
| Class of Worker | PW |
| Hours Worked | 3 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Scaler |
| Township / Ward | Kamilche Precinct |
| Est. Birth Year | ~1902 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Thomas Mcdonald | Son | — | 38 | ~1902 |
| J Mcdonald | Head | — | 68 | ~1872 |
| Emma Mcdonald | Spouse | — | 56 | ~1884 |
Census Appearances
1920
Mason, Washington
Son, age 18
Mason, Washington · implied b. ~1902 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonald |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Washington |
| Mother's Birthplace | Washington |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
Mason, Washington
Son, age 28
Mason, Washington · implied b. ~1902 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonald |
| Given Name | Tom Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Washington |
| Mother's Birthplace | Washington |
| Occupation | Woodsman |
| Industry | Log Camp |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
Mason-County, Washington
Son, age 38
Mason-County, Washington · implied b. ~1902 — 3 household members
| Surname | McDonald |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Kamilche Precinct |
| 1935 Residence (County) | Mason |
| Occupation | Scaler |
| Industry | Timber Company |
| Class of Worker | PW |
| Hours Worked | 3 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 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: mother Mary Mcdonald (~0.84 confidence) and father J Mcdonald (~0.92 confidence) and father Tom Mcdonald (~0.92 confidence) and father William Mcdonald (~0.92 confidence) and mother Emma Mcdonald (~0.92 confidence). The pedigree spans 2 generations with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.9
Mother
Mary Mcdonald
b. ~1837
Source father>mother
● Household
· direct · ~0.84
Father
J Mcdonald
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Tom Mcdonald
b. ~1872
Source father
● Household
· direct · ~0.92
Father
William Mcdonald
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Emma Mcdonald
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Mcdonald
Son · 1940 · age 38 · b. ~1902 · 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 — Mason-County, Washington
Open full size
1940 US Federal Census — Mason-County, Washington
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04352-00604)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William C Retdorf | 45 | Head | Farmer | Indiana |
| 42 | Marjorie Retdorf | 36 | Wife | — | No. Dakota |
| 43 | Alfred Retdorf | 16 | Son | Farm Work | Washington |
| 44 | Richard Retdorf | 14 | Son | — | Washington |
| 45 | Joyce Retdorf | 12 | Daughter | — | Washington |
| 46 | Jeanine Retdorf | 10 | Daughter | — | Washington |
| 47 | Ernest Retdorf | 41 | Brother | Farm Work | Indiana |
| 48 | Herman Retdorf | 30 | Head | Powder Man | Washington |
| 49 | Ruth E Retdorf | 25 | Wife | — | Washington |
| 50 | Colleen Retdorf | 6 | Daughter | — | Washington |
| 51 | Travis Retdorf | 5 | Son | — | Washington |
| 52 | Nancy Retdorf | 1 | Daughter | — | Washington |
| 53 | Joseph A Eick | 39 | Head | Section Hand | Nebraska |
| 54 | Viola V Eick | 33 | Wife | — | Washington |
| 55 | Ralph Eick | 8 | Son | — | Washington |
| 56 | Percy Adams | 40 | Head | Laborer | Missouri |
| 57 | Grace A Adams | 37 | Wife | — | Indiana |
| 58 | Lester Adams | 18 | Son | Log Operator | Wisconsin |
| 59 | Adrian Adams | 15 | Son | Farm Work | Wisconsin |
| 60 | Joan Adams | 9 | Daughter | — | Washington |
| 61 | Thelma Jane Adams | 1 | Daughter | — | Washington |
| 62 | Sterling Mcguire | 75 | Head | Farmer | Tennessee |
| 63 | Lucinda Mcguire | 73 | Wife | — | Kentucky |
| 64 | C. O. Brotin | 44 | Lodger | Farm Work | Norway |
| 65 | J. W. Mcdonald | 68 | Head | Farmer | Washington |
| 66 | Emma Mcdonald | 56 | Wife | — | Washington |
| 67 | Thomas Mcdonald THIS PERSON | 38 | Son | Scaler | Washington |
| 68 | Ronald Mcdonald | 67 | Head | Farmer | Washington |
| 69 | Adeline Mcdonald | 55 | Wife | — | Washington |
| 70 | Donald Mcdonald | 22 | Son | Farm Work | Washington |
| 71 | Mary Ann Mcdonald | 14 | Daughter | — | Washington |
| 72 | Nile Mcdonald | 13 | Son | — | Washington |
| 73 | Frank Lindenberger | 38 | Hired-Hand | Farm Work | Oregon |
| 74 | Peter O Duty | 56 | Head | — | Washington |
| 75 | William M Myers | 73 | Head | — | Pennsylvania |
| 76 | Floyd Cheto | 39 | Head | Buckers | Oregon |
| 77 | Mary K Cheto | 30 | Wife | — | No. Dakota |
| 78 | Melvin Cheto | 10 | Son | — | Idaho |
| 79 | Curtis Cheto | 8 | Son | — | Idaho |
| 80 | Sherold Cheto | 7 | Son | — | Idaho |
Pedigree Summary
Thomas
Gen 1 · 4 parents
~0.92
Gen 2 · 1 grandparents
~0.84
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)