DR
David Robinson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marion-County, Iowa
Our Model Tree links this David Robinson across the 1920, 1930 and 1940 US Censuses in Marion-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1892), then head of a 5-person household.
Age 48
b. ~1892
Male
Head
Born: Nebraska
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Iowa |
| Surname | Robinson |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Nebraska |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Telephone Co |
| Industry | PW |
| Class of Worker | 1800 |
| Highest Grade | No 7 |
| 1935 Residence | 42 |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
| Occupation | Telephone Co |
| Township / Ward | Knoxville City |
| Est. Birth Year | ~1892 |
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 David | Age | Birth yr |
|---|---|---|---|---|
| Norma Robinson | Daughter | — | 17 | ~1923 |
| Leland Robinson | Son | — | 15 | ~1925 |
| David Robinson | Head | — | 48 | ~1892 |
| Bertha Robinson | Spouse | — | 44 | ~1896 |
| Wilma Robinson | Daughter | — | 18 | ~1922 |
Census Appearances
1920
Marion, Iowa
Head, age 26
Marion, Iowa · implied b. ~1894 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robinson |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Nebraska |
| Father's Birthplace | Nebraska |
| Mother's Birthplace | Nebraska |
| Occupation | Lineman |
| Industry | Telephone Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1930
Marion, Iowa
Head, age 37
Marion, Iowa · implied b. ~1893 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robinson |
| Given Name | Dan |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Nebraska |
| Age at First Marriage | 20 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Missouri |
| Occupation | Line man |
| Industry | Telephone |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 2500 |
| Radio Set | R |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1940
Marion-County, Iowa
Head, age 48
Marion-County, Iowa · implied b. ~1892 — 5 household members
| Surname | Robinson |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Nebraska |
| 1935 Residence (County) | Marion |
| Occupation | Telephone Co |
| Industry | PW |
| Class of Worker | 1800 |
| Highest Grade | No 7 |
| 1935 Residence | 42 |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
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.
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This person
Anchor record
David Robinson
Head · 1940 · age 48 · b. ~1892 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Marion-County, Iowa
Open full size
1940 US Federal Census — Marion-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01181-00251)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Judith Ann Boylan | 1 | Daughter | — | Iowa |
| 42 | Louise Maid Vander Linden | 20 | Maid | Private Home | Iowa |
| 43 | G. H. Vander Veer | 29 | Head | 44 | Missouri |
| 44 | Mary Louise Vander Veer | 23 | Wife | — | Missouri |
| 45 | Henry Berhow | 32 | Head | 40 | Iowa |
| 46 | Bernice Berhow | 33 | Wife | — | Iowa |
| 47 | Ray C. Thompson | 41 | Head | Coal Mine | Missouri |
| 48 | Doris Thompson | 39 | Wife | — | Iowa |
| 49 | Robert Thompson | 17 | Son | Coal Mine | Iowa |
| 50 | Merle Van Cleve | 25 | Son in law | State Highway | Iowa |
| 51 | Wanda Lee Van Cleve | 21 | Daughter | — | Iowa |
| 52 | Terrance Van Cleve | 0 | Son | — | Iowa |
| 53 | Robert S. Thompson | 64 | Head | Coal Mine | Indiana |
| 54 | Hattie Thompson | 65 | Wife | — | Missouri |
| 55 | Guy H. Anderson | 31 | Head | Coal Mine | Iowa |
| 56 | Lucile Anderson | 24 | Wife | — | Iowa |
| 57 | Cornie Van Steeg | 33 | Head | Own Truck | Iowa |
| 58 | Ruby Van Steeg | 31 | Wife | Rural School | Iowa |
| 59 | Lena Drane | 63 | Head | — | Tennessee |
| 60 | Bud Drane | 64 | Brother | — | Tennessee |
| 61 | John Cobble | 67 | Head | On Farm | Tennessee |
| 62 | Minnie Cobble | 65 | Wife | — | Tennessee |
| 63 | Forrest Cobble | 26 | Son | Soil Conservation | Iowa |
| 64 | Guy Cobble | 20 | Son | Coal Mine | Iowa |
| 65 | William C. Palmer | 47 | Head | Own Shop | Missouri |
| 66 | Florence Palmer | 48 | Wife | — | Iowa |
| 67 | Wallace Palmer | 16 | Son | — | Iowa |
| 68 | Morris Palmer | 14 | Son | — | Iowa |
| 69 | Paul Palmer | 12 | Son | — | Iowa |
| 70 | David Robinson THIS PERSON | 48 | Head | Telephone Co | Nebraska |
| 71 | Bertha Robinson | 44 | Wife | — | Missouri |
| 72 | Wilma Robinson | 18 | Daughter | — | Iowa |
| 73 | Norma Jean Robinson | 17 | Daughter | — | Iowa |
| 74 | Leland Robinson | 15 | Son | — | Iowa |
| 75 | David King | 70 | Head | — | Kentucky |
| 76 | Lizzie King | 76 | Wife | — | Iowa |
| 77 | William R. Fortner | 82 | Head | — | Iowa |
| 78 | Lottie Fortner | 75 | Wife | — | Wisconsin |
| 79 | John E. Brooker | 33 | Head | Oil Company | Iowa |
| 80 | Maxine Brooker | 26 | Wife | — | Iowa |
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)