JC
Joseph Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Multnomah-County, Oregon
Our Model Tree links this Joseph Clark across the 1920, 1930 and 1940 US Censuses in Multnomah-County, Oregon (XGBoost, ~Confirmed), with identified parents Leonard & Marie — first a son (b.~1917), then head of a 4-person household.
Age 23
b. ~1917
Male
Son
Born: Oregon
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Multnomah-County, Oregon |
| Surname | Clark |
| Given Name | Joseph F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Oregon |
| 1935 Residence (City) | Portland city |
| 1935 Residence (County) | Multnomah |
| Additional Details | |
| Industry | 315 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
| Township / Ward | Portland City |
| Est. Birth Year | ~1917 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| Eugenia Clark | Daughter | — | 22 | ~1918 |
| Leonard Clark | Head | — | 47 | ~1893 |
| Joseph Clark | Son | — | 23 | ~1917 |
| Marie Clark | Spouse | — | 44 | ~1896 |
Census Appearances
1920
Multnomah, Oregon
Son, age 3
Multnomah, Oregon · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Joseph F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1930
Multnomah, Oregon
Son, age 13
Multnomah, Oregon · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1940
Multnomah-County, Oregon
Son, age 23
Multnomah-County, Oregon · implied b. ~1917 — 4 household members
| Surname | Clark |
| Given Name | Joseph F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Oregon |
| 1935 Residence (City) | Portland city |
| 1935 Residence (County) | Multnomah |
| Industry | 315 |
| Highest Grade | C 2 |
| 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 Joseph Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Leonard Clark (~0.92 confidence) and mother Marie Clark (~0.92 confidence) and mother Marie Clark (~0.92 confidence) and mother Mary Clark (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Leonard Clark
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Marie Clark
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Marie Clark
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Mary Clark
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Joseph Clark
Son · 1940 · age 23 · b. ~1917 · Oregon
★ You are viewing this record
Sibling
Eugenia Clark
Sibling · 1940 · age 22
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
37 people indexed on this census page (nara:1940:m-t0627-03385-00269)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Stephen J. Chase | 6 | Son | — | Oregon |
| 42 | Louis J. Burgoyne | 23 | Head | Carrier Driver | Montana |
| 43 | Pearl E. Burgoyne | 22 | Wife | — | Oregon |
| 44 | Edna S. Palley | 51 | Head | — | Oregon |
| 45 | Alex Baldigam | 50 | Head | Painter | Finland |
| 46 | Elsie Baldigam | 53 | Wife | — | Kansas |
| 47 | Jack F. Essert | 24 | Lodger | Laborer | North Dakota |
| 48 | Harriet W. Essert | 21 | Wife | Laborer | North Dakota |
| 49 | Ronald J. Essert | 2 | Son | — | Oregon |
| 50 | Doris E. Holverson | 20 | Lodger | Elevator Operator | Oregon |
| 51 | Mary Jane James | 35 | Lodger | Factory Worker | Canada-English |
| 52 | Mary Dehning | 25 | Lodger | Secretary | Nebraska |
| 53 | Clarence S. Gareld | 21 | Lodger | Water Pump Operator | Idaho |
| 54 | Earl M. Nordgren | 23 | Lodger | Shipping Clerk | Oregon |
| 55 | John H. Belcher | 26 | Lodger | Warehouse Worker | Idaho |
| 56 | Muriel E. Mullins | 29 | Lodger | Nurse'S Helper | Kansas |
| 57 | Ira James Rush | 23 | Lodger | Laborer | South Dakota |
| 58 | Leslie R. Cochran | 33 | Lodger | City Salesman | Washington |
| 59 | Lois Cochran | 32 | Wife | Demonstrator | Washington |
| 60 | Patricia Cochran | 13 | Daughter | — | Washington |
| 61 | Extra Lines Extra Lines | None | Extra Lines | Extra Lines | Extra Lines |
| 65 | Leonard S. Clark | 47 | Head | Office Manager | Pennsylvania |
| 66 | Marie S. Clark | 44 | Wife | — | Pennsylvania |
| 67 | Joseph F. Clark THIS PERSON | 23 | Son | — | Oregon |
| 68 | Eugenia M. Clark | 22 | Daughter | Office Girl | Oregon |
| 69 | Fred B. Gallagher | 54 | Head | Shipping Clerk | Michigan |
| 70 | Lucille M. Gallagher | 48 | Wife | — | Georgia |
| 71 | Jean R. Gallagher | 20 | Daughter | Cashier | Mississippi |
| 72 | Fred B. Jr. Gallagher | 16 | Son | Messenger | Mississippi |
| 73 | Edna S. Mitchell | 54 | Head | — | Iowa |
| 74 | Maurine J. Mitchell | 15 | Daughter | Stenographer | Idaho |
| 75 | Sophie Belz | 37 | Lodger | Trained Nurse | Washington |
| 76 | Wanda M. Neilson | 18 | Lodger | Stenographer | Oregon |
| 77 | Block Here Ends | None | 29 | — | — |
| 78 | Harry L. Hart | 60 | Head | Owner | New York |
| 79 | Anna L. Hart | 54 | Wife | — | Pennsylvania |
| 80 | Matilda E. Raid | 53 | Servant | Housekeeper | Sweden |
Pedigree Summary
Joseph + 1 sibling
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)