DR
David Robinson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Polk-County, Iowa
Our Model Tree links this David Robinson across the 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed), with identified parents J & Nate — first a son (b.~1915), then head of a 3-person household.
Age 25
b. ~1915
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Iowa |
| Surname | Robinson |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines city |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Occupation | (son was in work camp) |
| Industry | (can't get income he was in camp) |
| Income (1939) | 200 |
| Highest Grade | C 1 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | (Son Was In Work Camp) |
| Township / Ward | Des Moines City |
| Est. Birth Year | ~1915 |
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 David | Age | Birth yr |
|---|---|---|---|---|
| Nate Robinson | Head | — | 53 | ~1887 |
| David Robinson | Son | — | 25 | ~1915 |
| Tillie Robinson | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Polk, Iowa
Son, age 5
Polk, Iowa · implied b. ~1915 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robinson |
| Given Name | David |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Occupation | none |
| Can Read | Yes |
| Speaks English | Yes |
| Mother Tongue | Hebrew |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Son, age 15
Polk, Iowa · implied b. ~1915 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robinson |
| Given Name | Dave |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Son, age 25
Polk-County, Iowa · implied b. ~1915 — 3 household members
| Surname | Robinson |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines city |
| 1935 Residence (County) | Polk |
| Occupation | (son was in work camp) |
| Industry | (can't get income he was in camp) |
| Income (1939) | 200 |
| Highest Grade | C 1 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 David Robinson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father J Robinson (~0.92 confidence) and father Nate Robinson (~0.92 confidence) and father Nathan Robinson (~0.92 confidence) and mother Tillie Robinson (~0.92 confidence) and mother Nellie Robinson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
J Robinson
b. ~1887
Source father
● Household
· direct · ~0.92
Father
Nate Robinson
b. ~1887
Source father
● Household
· direct · ~0.92
Father
Nathan Robinson
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Tillie Robinson
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Nellie Robinson
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
David Robinson
Son · 1940 · age 25 · b. ~1915 · Iowa
★ 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 — Polk-County, Iowa
Open full size
1940 US Federal Census — Polk-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01194-00592)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William H. Koning | 13 | Son | — | Iowa |
| 42 | Nate Robinson | 53 | Head | Wpa Project | Russia |
| 43 | Tillie Robinson | 53 | Wife | — | Russia |
| 44 | David Robinson THIS PERSON | 25 | Son | (Son Was In Work Camp) | Iowa |
| 45 | Robert Cohen | 44 | Head | Timekeeper | Iowa |
| 46 | Anna Cohen | 43 | Wife | — | Iowa |
| 47 | Edward Cohen | 18 | Son | — | Iowa |
| 48 | Shirley Cohen | 12 | Daughter | — | Iowa |
| 49 | Winchell Pusey | 40 | Head | Driver | Illinois |
| 50 | Esther Pusey | 37 | Wife | — | Iowa |
| 51 | Pauline Pusey | 14 | Daughter | — | Iowa |
| 52 | Richard Pusey | 10 | Son | — | Iowa |
| 53 | Margaret Gilbride | 72 | Head | — | Iowa |
| 54 | Anna Tharp | 77 | Lodger | — | Illinois |
| 55 | Susie Bard | 70 | Head | — | Iowa |
| 56 | Arthur Lewis | 45 | Son in law | Laborer | Nebraska |
| 57 | Stella Lewis | 44 | Daughter | — | Iowa |
| 58 | Genevieve Gammel | 29 | Daughter | Seamstress | Iowa |
| 59 | Gary Gammel | 10 | Grandson | — | Iowa |
| 60 | Edward White | 70 | Head | — | Illinois |
| 61 | Harriett White | 70 | Wife | — | Illinois |
| 62 | Clifford White | 44 | Son | Truck Driver | Illinois |
| 63 | Edward F. White | 27 | Son | Boxer | Iowa |
| 64 | Ruth White | 25 | Daughter in law | — | Iowa |
| 65 | Judith White | 1 | Granddaughter | — | Iowa |
| 66 | Grace Simpson | 65 | Head | — | Iowa |
| 67 | R. L. Simpson | 34 | Son | Salesman | Iowa |
| 68 | Rena Simpson | 31 | Wife | — | Iowa |
| 69 | Edna Beatty | 37 | Daughter | Stenographer | Iowa |
| 70 | Donnelle Beatty | 8 | Granddaughter | — | Iowa |
| 71 | Raymond Finger | 43 | Head | Auto Body Service | Iowa |
| 72 | Verla Finger | 41 | Wife | — | Missouri |
| 73 | Virgil Finger | 19 | Son | — | Iowa |
| 74 | Donald Finger | 18 | Son | Waiter | Iowa |
| 75 | Leonard Finger | 16 | Son | — | Iowa |
| 76 | Marilyn Finger | 12 | Daughter | — | Iowa |
| 77 | Guy Morgan | 54 | Head | Truck Driver | Iowa |
| 78 | Elsie Morgan | 52 | Wife | Sales Lady | Iowa |
| 79 | Harold Morgan | 21 | Son | Truck Driver | Iowa |
| 80 | Catherine Frinds | 48 | Head | Dressmaker | Iowa |
Pedigree Summary
David
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)