TR
Thomas Robertson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Multnomah-County, Oregon
Our Model Tree links this Thomas Robertson across the 1920, 1930 and 1940 US Censuses in Multnomah-County, Oregon (XGBoost, ~Confirmed), with identified parents Grant & Albertine — first a son (b.~1918), then head of a 3-person household.
Age 22
b. ~1918
Male
Son
Born: Oregon
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Multnomah-County, Oregon |
| Surname | Robertson |
| Given Name | Thomas G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Oregon |
| 1935 Residence (City) | Portland city |
| 1935 Residence (County) | Multnomah |
| Additional Details | |
| Income (1939) | 100 |
| Highest Grade | C 3 |
| 1935 Residence | Same Place |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
| Township / Ward | Portland City |
| Est. Birth Year | ~1918 |
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 |
|---|---|---|---|---|
| Grant Robertson | Head | — | 54 | ~1886 |
| Thomas Robertson | Son | — | 22 | ~1918 |
| Albertine Robertson | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Multnomah, Oregon
Son, age 2
Multnomah, Oregon · implied b. ~1918 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robertson |
| Given Name | Thomas A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Oregon |
| Mother's Birthplace | Oregon |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1930
Multnomah, Oregon
Son, age 12
Multnomah, Oregon · implied b. ~1918 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robertson |
| Given Name | Thomas L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Oregon |
| Mother's Birthplace | Oregon |
| Can Read/Write | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1940
Multnomah-County, Oregon
Son, age 22
Multnomah-County, Oregon · implied b. ~1918 — 3 household members
| Surname | Robertson |
| Given Name | Thomas G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Oregon |
| 1935 Residence (City) | Portland city |
| 1935 Residence (County) | Multnomah |
| Income (1939) | 100 |
| Highest Grade | C 3 |
| 1935 Residence | Same Place |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
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 Robertson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Grant Robertson (~0.92 confidence) and mother Albertine Robertson (~0.92 confidence) and mother Albertine Robertson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Grant Robertson
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Albertine Robertson
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Albertine Robertson
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Robertson
Son · 1940 · age 22 · b. ~1918 · Oregon
★ 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 — Multnomah-County, Oregon
Open full size
1940 US Federal Census — Multnomah-County, Oregon
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03385-00600)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Chester J. Cheney | 55 | Head | Laborer | Idaho |
| 2 | Jessie Cheney | 51 | Wife | — | Indiana |
| 3 | Charles F. Stringham | 38 | Head | Shovel Operator | Arkansas |
| 4 | Ora E. Stringham | 35 | Wife | — | Oregon |
| 5 | Fern L. Stringham | 14 | Daughter | — | Oregon |
| 6 | Robert N. Stringham | 12 | Son | — | Oregon |
| 7 | James H. Curneal | 66 | Head | Laborer | Illinois |
| 8 | Veta M. Curneal | 64 | Wife | — | Indiana |
| 9 | Arthur H. Adams | 51 | Head | Longshoreman | Texas |
| 10 | Maude M. Hibbs | 62 | Sister | — | Kansas |
| 11 | Sadie R. Schluessel | 67 | Head | — | New York |
| 12 | Hannah Thogerson | 64 | Head | Laundress | Norway |
| 13 | Maria Larson | 60 | Head | — | Finland |
| 14 | Clara A. Larson | 14 | Daughter | — | North Dakota |
| 15 | Hannah Mcmillan | 64 | Head | — | Minnesota |
| 16 | Rudolph Mcmillan | 24 | Son | Laborer | Oregon |
| 17 | John T. Lilly | 70 | Head | — | Missouri |
| 18 | Arthur E. Lafferty | 53 | Head | Salesman | Iowa |
| 19 | Gladys I. Lafferty | 46 | Wife | Manager | Nebraska |
| 20 | William S. Kohl | 62 | Head | Janitor | Oregon |
| 21 | Xavier M. Bissonnette | 61 | Head | Machine Sewer | Iowa |
| 22 | Leah G. Ness | 34 | Partner | Housework | Minnesota |
| 23 | John R. Adams | 35 | Head | Glasswork Repair | Colorado |
| 24 | Margaret B. Adams | 72 | Mother | — | Massachusetts |
| 25 | Myrtle L. Adams | 24 | Wife | — | Washington |
| 26 | John R. Jr. Adams | 0 | Infant | — | Oregon |
| 27 | Grant A. Robertson | 54 | Head | Sales Manager | Oregon |
| 28 | Albertine S. Robertson | 53 | Wife | — | Oregon |
| 29 | Thomas G. Robertson THIS PERSON | 22 | Son | — | Oregon |
| 30 | Bernice Shockbourne | 60 | Head | — | Oregon |
| 31 | Florence S. Shockbourne | 50 | Sister | — | Oregon |
| 32 | Malvina A. Hansen | 43 | Maid | Housework | Poland |
| 33 | Albert M. Solomon | 66 | Head | Proprietor | Connecticut |
| 34 | Clara Solomon | 45 | Wife | — | Oregon |
| 35 | Mortimer S. Solomon | 33 | Son | Assistant Manager | New York |
| 36 | Ernest S. King | 64 | Head | Operating Engineer | California |
| 37 | Bertha P. King | 57 | Wife | — | Nevada |
| 38 | Nathaniel M. Higgins | 60 | Head | Drug Salesman | Kansas |
| 39 | Margaret Higgins | 44 | Wife | Secretary | North Carolina |
| 40 | Lois J. Porter | 15 | Niece | — | Oregon |
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)