DA
Donald Allen — 1940 US Census Record
Model Tree available1940 United States Federal Census · Multnomah-County, Oregon
Our Model Tree links this Donald Allen across the 1920, 1930 and 1940 US Censuses in Multnomah-County, Oregon (XGBoost, ~Confirmed), with identified parents Quincy & Quincy — first a son (b.~1920), then head of a 5-person household.
Age 20
b. ~1920
Male
Son
Born: Oregon
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Multnomah-County, Oregon |
| Surname | Allen |
| Given Name | Donald R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Oregon |
| 1935 Residence (City) | Portland city |
| 1935 Residence (County) | Multnomah |
| Additional Details | |
| Occupation | New Worker |
| Industry | Vacations |
| Income (1939) | 170 |
| Highest Grade | H 2 |
| 1935 Residence | Same house |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
| Occupation | New Worker |
| Township / Ward | Portland City |
| Est. Birth Year | ~1920 |
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 Donald | Age | Birth yr |
|---|---|---|---|---|
| Sidney Allen | Head | — | 44 | ~1896 |
| Irene Allen | Spouse | — | 41 | ~1899 |
| Robert Allen | Son | — | 14 | ~1926 |
| Donald Allen | Son | — | 20 | ~1920 |
| Dwight Allen | Son | — | 11 | ~1929 |
Census Appearances
1920
Multnomah, Oregon
Son, age
Multnomah, Oregon · implied b. ~1920 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Allen |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Kentucky |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1930
Multnomah, Oregon
Son, age 10
Multnomah, Oregon · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Allen |
| Given Name | Donald F |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Kentucky |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1940
Multnomah-County, Oregon
Son, age 20
Multnomah-County, Oregon · implied b. ~1920 — 5 household members
| Surname | Allen |
| Given Name | Donald R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Oregon |
| 1935 Residence (City) | Portland city |
| 1935 Residence (County) | Multnomah |
| Occupation | New Worker |
| Industry | Vacations |
| Income (1939) | 170 |
| Highest Grade | H 2 |
| 1935 Residence | Same house |
| 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 Donald Allen across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Quincy Allen (~0.92 confidence) and father Quincy Allen (~0.92 confidence) and father Sidney Allen (~0.92 confidence) and mother Irene Allen (~0.92 confidence) and mother Lura Allen (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Quincy Allen
b. ~1866
Source father
● Household
· direct · ~0.92
Father
Quincy Allen
b. ~1896
Source father
● Household
· direct · ~0.92
Father
Sidney Allen
b. ~1896
Source father
● Household
· direct · ~0.92
Mother
Irene Allen
b. ~1899
Source mother
● Household
· direct · ~0.92
Mother
Lura Allen
b. ~1870
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Donald Allen
Son · 1940 · age 20 · b. ~1920 · Oregon
★ You are viewing this record
Sibling
Dwight Allen
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Allen
Sibling · 1940 · age 14
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 — Multnomah-County, Oregon
Open full size
1940 US Federal Census — Multnomah-County, Oregon
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-03388-00633)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Agnes G Donnelly | 41 | Head | Seamstress | Canada English |
| 2 | Alice J Donnelly | 16 | Daughter | — | Canada English |
| 4 | La Verne E Murphy | 42 | Head | Dietician | Wisconsin |
| 5 | James E Murphy | 22 | Son | Laborer | Oregon |
| 6 | Sidney R Allen | 44 | Head | Chief Trucking Clerk | Indiana |
| 7 | Irene M Allen | 41 | Wife | — | Kentucky |
| 8 | Donald R Allen THIS PERSON | 20 | Son | New Worker | Oregon |
| 9 | Robert K Allen | 14 | Son | — | Oregon |
| 10 | Dwight F Allen | 11 | Son | — | Oregon |
| 11 | Agostino Potestio | 42 | Head | Insurance Agent | Italy |
| 12 | Mary V Potestio | 39 | Wife | Seamstress | Italy |
| 13 | Joseph E Potestio | 17 | Son | — | Nebraska |
| 14 | Mauro Potestio | 15 | Son | — | Colorado |
| 15 | Florence Potestio | 14 | Daughter | — | Colorado |
| 16 | Clarence Rengery | 52 | Head | Meat Cutter | Oregon |
| 17 | Cecelia M Rengery | 45 | Wife | — | Oregon |
| 18 | Frances Rengery | 22 | Daughter | Thread Winder | Washington |
| 19 | Ernest Rengery | 17 | Son | Parking Lot Attendant | Oregon |
| 20 | Lawrence E Born | 31 | Head | Truck Driver | Oregon |
| 21 | Louise C Born | 30 | Wife | — | Oregon |
| 22 | Clarence A Campbell | 56 | Head | Painter And Carpenter | New York |
| 23 | Pauline E Campbell | 53 | Wife | — | New York |
| 24 | Clarence W Campbell | 19 | Son | Helper | Oregon |
| 25 | Herman B Senften | 33 | Head | Truck Mechanic | Louisiana |
| 26 | Isabella E Senften | 28 | Wife | — | Washington |
| 27 | Herman Senften | 4 | Son | — | Oregon |
| 28 | Albert Mulford | 59 | Head | Painter - Paperhanger | Kansas |
| 29 | Elina Mulford | 61 | Wife | Practical Nurse | Illinois |
| 31 | Russell A Du Bay | 27 | Head | Insurance Salesman | Wisconsin |
| 32 | Mary G Du Bay | 28 | Wife | Policy Writer | Wisconsin |
| 33 | Andre Du Bay | 3 | Son | — | Oregon |
| 34 | James Davis | 31 | Head | Truck Driver | Washington |
| 35 | Florence E Davis | 32 | Wife | — | Washington |
| 36 | James W Davis | 12 | Son | — | Oregon |
| 37 | John B Davis | 12 | Son | — | Oregon |
| 38 | Rita E Davis | 11 | Daughter | — | Oregon |
| 39 | Wilfrid Davis | 9 | Son | — | Oregon |
| 40 | William C Mcnaught | 67 | Head | Manager | South Dakota |
Pedigree Summary
Donald + 2 siblings
Gen 1 · 5 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)