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Robert Jenkins — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cowlitz-County, Washington
Our Model Tree links this Robert Jenkins across the 1920, 1930 and 1940 US Censuses in Cowlitz-County, Washington (XGBoost, ~Confirmed), with identified parents Margaret & Ellen — first a son (b.~1919), then head of a 3-person household.
Age 21
b. ~1919
Male
Son
Born: Washington
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cowlitz-County, Washington |
| Surname | Jenkins |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Kelso City |
| 1935 Residence (County) | Cowlitz |
| Additional Details | |
| Occupation | clerk |
| Industry | police station |
| Class of Worker | GW |
| Hours Worked | 56 |
| Income (1939) | 600 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Clerk |
| Township / Ward | Kelso City |
| Est. Birth Year | ~1919 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Eugene Jenkins | Head | — | 49 | ~1891 |
| Robert Jenkins | Son | — | 21 | ~1919 |
| Ellen Jenkins | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Cowlitz, Washington
Other, age 1
Cowlitz, Washington · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jenkins |
| Given Name | Robert W |
| Relationship to Head | Grand-son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Washington |
| Mother's Birthplace | Michigan |
| Occupation | none |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
Cowlitz, Washington
Son, age 11
Cowlitz, Washington · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jenkins |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Washington |
| Mother's Birthplace | Michigan |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
Cowlitz-County, Washington
Son, age 21
Cowlitz-County, Washington · implied b. ~1919 — 3 household members
| Surname | Jenkins |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Kelso City |
| 1935 Residence (County) | Cowlitz |
| Occupation | clerk |
| Industry | police station |
| Class of Worker | GW |
| Hours Worked | 56 |
| Income (1939) | 600 |
| 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 Robert Jenkins across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Margaret Miller (~0.81 confidence) and mother Ellen Jenkins (~0.92 confidence) and father Eugene Jenkins (~0.92 confidence). The pedigree spans 2 generations with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.88
Mother
Margaret Miller
b. ~1847
Source mother>mother
● Household
· direct · ~0.81
Mother
Ellen Jenkins
b. ~1887
Source mother
● Household
· direct · ~0.92
Father
Eugene Jenkins
b. ~1891
Source father
● Household
· direct · ~0.92
This person
Anchor record
Robert Jenkins
Son · 1940 · age 21 · b. ~1919 · 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 — Cowlitz-County, Washington
Open full size
1940 US Federal Census — Cowlitz-County, Washington
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-04337-00561)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Iris Riley | 10 | Lodger | — | Washington |
| 42 | Kenneth Riley | 23 | Lodger | Truck Driver | Iowa |
| 43 | George Allard | 25 | Lodger | Mill Wright | Washington |
| 44 | Neil Auld | 29 | Head | — | Oregon |
| 45 | Charles Mitchell | 70 | Head | Brakeman | Missouri |
| 46 | Matilda Mitchell | 36 | Wife | — | Washington |
| 47 | Charles E. Mitchell | 17 | Son | — | Washington |
| 48 | Rhoda Hener | 78 | Head | — | Iowa |
| 49 | Eugene W. Jenkins | 49 | Head | Laborer | Washington |
| 50 | Ellen Jenkins | 53 | Wife | — | Michigan |
| 51 | Robert Jenkins THIS PERSON | 21 | Son | Clerk | Washington |
| 52 | John W. Maxwell | 50 | Head | Longshoreman | Texas |
| 53 | Gillian Maxwell | 52 | Wife | — | Kansas |
| 54 | William Cameron | 59 | Head | Meat Cutter | Oregon |
| 55 | Julia Cameron | 60 | Wife | — | Minnesota |
| 57 | William Haft | 52 | Head | — | Russia |
| 58 | Samuel Clark | 55 | Head | — | Kansas |
| 59 | Charlotte Clark | 57 | Wife | Seamstress | Kansas |
| 60 | Leon R. Richards | 57 | Head | — | Indiana |
| 61 | Agnes Richards | 15 | Daughter | — | Oklahoma |
| 62 | Opal Richards | 9 | Daughter | — | Washington |
| 63 | Agnes George | 63 | Mother | — | Indiana |
| 64 | Edward Amera | 25 | Lodger | Cat Operator | Nebraska |
| 65 | Earl Buell | 36 | Lodger | Cat Painter | United States |
| 66 | Glen Flyhill | 30 | Lodger | Cat Operator | Oregon |
| 67 | E. B. Julian | 48 | Head | Engineer | Missouri |
| 68 | Dorothy Julian | 26 | Daughter | Waitress | Washington |
| 69 | Steve Swan | 30 | Head | Truck Driver | Iowa |
| 70 | Anna Swan | 24 | Wife | — | Minnesota |
| 71 | Jean Swan | 6 | Daughter | — | Washington |
| 72 | Arthur Hale | 28 | Brother | Truck Driver | Idaho |
| 73 | Arthur Herrick | 20 | Brother | Truck Driver | Washington |
| 74 | William M. Dunbar | 42 | Head | Steam Fitter | Oregon |
| 75 | Martha M. Dunbar | 32 | Wife | — | Oregon |
| 76 | John W. Dunbar | 13 | Son | — | Oregon |
| 77 | James R. Dunbar | 10 | Son | — | Oregon |
| 78 | Frank Massey | 49 | Head | Laborer | Indiana |
| 79 | Irene Massey | 20 | Daughter | Office Girl | Washington |
| 80 | Frank Jr. Massey | 19 | Son | — | Washington |
Pedigree Summary
Robert
Gen 1 · 2 parents
~0.92
Gen 2 · 1 grandparents
~0.81
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)