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Robert Williams — 1940 US Census Record
Model Tree available1940 United States Federal Census · Multnomah-County, Oregon
Our Model Tree links this Robert Williams across the 1920, 1930 and 1940 US Censuses in Multnomah-County, Oregon (XGBoost, ~Confirmed), with identified parents Jerome & Thomas — first a head (b.~1910), then head of a 5-person household.
Age 30
b. ~1910
Male
Head
Born: Oregon
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Multnomah-County, Oregon |
| Surname | Williams |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Oregon |
| 1935 Residence (City) | Portland City |
| 1935 Residence (County) | Multnomah |
| Additional Details | |
| Occupation | Sheet Metal |
| Industry | Machine Co |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 2400 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
| Occupation | Sheet Metal |
| Township / Ward | Portland 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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Sharon Williams | Daughter | — | 4 | ~1936 |
| Frances Williams | Daughter | — | 2 | ~1938 |
| Robert Williams | Head | — | 30 | ~1910 |
| Elvis Bradt | Other | — | 56 | ~1884 |
| Edith Williams | Spouse | — | 32 | ~1908 |
Census Appearances
1920
Multnomah, Oregon
Son, age 9
Multnomah, Oregon · implied b. ~1911 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Oregon |
| Mother's Birthplace | Minnesota |
| Occupation | none |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1930
Multnomah, Oregon
Son, age 19
Multnomah, Oregon · implied b. ~1911 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Robert J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Oregon |
| Mother's Birthplace | Minnesota |
| Occupation | Laborer |
| Industry | Tin shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1940
Multnomah-County, Oregon
Head, age 30
Multnomah-County, Oregon · implied b. ~1910 — 5 household members
| Surname | Williams |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Oregon |
| 1935 Residence (City) | Portland City |
| 1935 Residence (County) | Multnomah |
| Occupation | Sheet Metal |
| Industry | Machine Co |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 2400 |
| Highest Grade | Hs 4 |
| 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 Robert Williams across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Jerome Williams (~0.92 confidence) and father Thomas Williams (~0.92 confidence) and mother Nettie Williams (~0.92 confidence) and mother Nellie Williams (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Jerome Williams
b. ~1879
Source father
● Household
· direct · ~0.92
Father
Thomas Williams
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Nettie Williams
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Nellie Williams
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Williams
Head · 1940 · age 30 · b. ~1910 · 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-t0627-03388-00301)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Kenneth H. West | 29 | Head | Operator | Washington |
| 2 | Thelma West | 28 | Wife | Operator | Oregon |
| 3 | Lewis West | 1 | Son | — | Oregon |
| 4 | Agatha Sorrall | 51 | Mother-in-law | — | Oregon |
| 5 | Frank Fordine | 26 | Head | Truck Driver | Kansas |
| 6 | Irene Fordine | 26 | Wife | — | Oregon |
| 7 | Nick Poulios | 47 | Head | — | Greece |
| 8 | Mary Poulios | 46 | Wife | — | Poland |
| 9 | Maltho Tsefalas | 42 | Head | Bus Boy | Greece |
| 10 | Gus Tsefalas | 21 | Son | — | Wisconsin |
| 11 | Georgia Tsefalas | 16 | Daughter | — | Oregon |
| 12 | Marion Tsefalas | 15 | Son | — | Oregon |
| 13 | Chris Tsefalas | 12 | Son | — | Oregon |
| 14 | Bessie Tsefalas | 9 | Daughter | — | Oregon |
| 15 | Robert Williams THIS PERSON | 30 | Head | Sheet Metal | Oregon |
| 16 | Edith Williams | 32 | Wife | — | Oregon |
| 17 | Sharon Williams | 4 | Daughter | — | Oregon |
| 18 | Frances Williams | 2 | Daughter | — | Oregon |
| 19 | Elvis E. Bradt | 56 | Mother-in-law | — | Colorado |
| 20 | James Boren | 51 | Head | Salesman | Kansas |
| 21 | Vera Boren | 43 | Wife | — | Kansas |
| 22 | Louise Boren | 20 | Daughter | Cashier | Kansas |
| 23 | Vivian Boren | 13 | Daughter | — | Oregon |
| 24 | Milton Lundahl | 52 | Head | Shop Foreman | Illinois |
| 25 | Milton Jr. Lundahl | 20 | Son | — | Oregon |
| 26 | Berton Lundahl | 14 | Son | — | Oregon |
| 27 | Gusta Voight | 51 | Housekeeper | — | Minnesota |
| 28 | Phillip Rodabaugh | 58 | Head | Salesman | Ohio |
| 29 | May W. Rodabaugh | 58 | Wife | — | Ohio |
| 30 | Abbie E. Rodabaugh | 26 | Daughter | Teacher | Oregon |
| 31 | Carl H. Rodabaugh | 20 | Son | — | Oregon |
| 32 | Roy D. Cox | 59 | Head | Night Watchman | Nebraska |
| 33 | Grace E. Cox | 59 | Wife | — | Kansas |
| 34 | Velmore R. Cox | 25 | Son | Bonneville Project | Oregon |
| 35 | Ella K. Horton | 79 | Mother-in-law | — | Wisconsin |
| 36 | H. J. Morgan | 42 | Head | Mechanic | Indiana |
| 37 | Vila Morgan | 43 | Wife | — | North Dakota |
| 38 | Robert Dunlap | 78 | Father-in-law | — | Canada |
| 39 | Tom Teall | 31 | Son-in-law | Night Watchman | Canada |
| 40 | Grace Teall | 24 | Daughter | — | Oregon |
Pedigree Summary
Robert
Gen 1 · 4 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)