RP
Robert Porter — 1940 US Census Record
Model Tree available1940 United States Federal Census · Washington-County, Iowa
Our Model Tree links this Robert Porter across the 1920, 1930 and 1940 US Censuses in Washington-County, Iowa (XGBoost, ~Confirmed), with identified parents Edgar & Edgar — first a son (b.~1920), then head of a 7-person household.
Age 20
b. ~1920
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Iowa |
| Surname | Porter |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Washington |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Occupation | Clerk |
| Industry | Grocery |
| Class of Worker | PW |
| Hours Worked | 65 |
| Income (1939) | 728 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Clerk |
| Township / Ward | Washington |
| 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Janice Porter | Daughter | — | 22 | ~1918 |
| Frances Porter | Daughter | — | 15 | ~1925 |
| Edgar Porter | Head | — | 48 | ~1892 |
| Harvey Porter | Other | — | 78 | ~1862 |
| John Porter | Son | — | 18 | ~1922 |
| Robert Porter | Son | — | 20 | ~1920 |
| Marion Porter | Spouse | — | 45 | ~1895 |
Census Appearances
1920
Washington, Iowa
Son, age
Washington, Iowa · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Porter |
| Given Name | Robert C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Washington, Iowa
Son, age 10
Washington, Iowa · implied b. ~1920 — 33 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Porter |
| Given Name | Robert E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Washington-County, Iowa
Son, age 20
Washington-County, Iowa · implied b. ~1920 — 7 household members
| Surname | Porter |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Washington |
| 1935 Residence (County) | Washington |
| Occupation | Clerk |
| Industry | Grocery |
| Class of Worker | PW |
| Hours Worked | 65 |
| Income (1939) | 728 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| 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 Robert Porter across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Edgar Porter (~0.92 confidence) and father Edgar Porter (~0.92 confidence) and mother Marion Porter (~0.92 confidence) and mother Marion Porter (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edgar Porter
b. ~1891
Source father
● Household
· direct · ~0.92
Father
Edgar Porter
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Marion Porter
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Marion Porter
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Porter
Son · 1940 · age 20 · b. ~1920 · Iowa
★ You are viewing this record
Sibling
John Porter
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Janice Porter
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Porter
Sibling · 1940 · age 15
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 — Washington-County, Iowa
Open full size
1940 US Federal Census — Washington-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01211-00482)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Wm. J. Taylor | 71 | Head | Retired Farmer | Iowa |
| 42 | Stanton G. Heisey | 55 | Head | Deputy Sheriff | Illinois |
| 43 | Catherine Heisey | 56 | Wife | — | Iowa |
| 44 | Daniel Heisey | 25 | Son | — | Iowa |
| 45 | Mary L. Crozier | 73 | Head | — | Illinois |
| 46 | Nancy Wood | 82 | Sister-in-law | — | Iowa |
| 47 | Bobby Crozier | 8 | Lodger | — | Iowa |
| 48 | Mary Linkinger | 71 | Head | — | Iowa |
| 49 | Wilbur Mcclelland | 63 | Head | Laborer | Iowa |
| 50 | Dora Mcclelland | 68 | Wife | — | Iowa |
| 51 | Harry Turner | 49 | Head | Superintendent | Iowa |
| 52 | Alice Turner | 50 | Wife | — | Illinois |
| 53 | Ruth Turner | 19 | Daughter | — | Iowa |
| 54 | Dorothy Turner | 15 | Daughter | — | Iowa |
| 55 | Annie Case | 80 | Head | — | Minn. |
| 56 | Sam Jr. Warren | 28 | Head | Laborer | Iowa |
| 57 | Dortha Warren | 27 | Wife | Grader | Iowa |
| 58 | Robt Lee Warren | 3 | Son | — | Iowa |
| 59 | Edgar M. Porter | 48 | Head | Truck Driver | Iowa |
| 60 | Marion Porter | 45 | Wife | — | Iowa |
| 61 | Janice Porter | 22 | Daughter | Secretary | Iowa |
| 62 | Robert Porter THIS PERSON | 20 | Son | Clerk | Iowa |
| 63 | John Porter | 18 | Son | Laborer | Iowa |
| 64 | Frances Porter | 15 | Daughter | — | Iowa |
| 65 | Harvey B. Porter | 78 | Father-in-law | — | Ohio |
| 66 | Harry H. Knott | 63 | Head | Pearl Worker | Iowa |
| 67 | Ella Knott | 48 | Wife | — | Illinois |
| 68 | Eva Knott | 23 | Daughter | — | Iowa |
| 69 | John M. Knott | 20 | Son | Pearl Worker | Iowa |
| 70 | Harrison Junior Knott | 15 | Son | — | Iowa |
| 71 | Doris Jean Knott | 12 | Daughter | — | Iowa |
| 72 | Edward Gilmer | 25 | Son-in-law | Salesman | Missouri |
| 73 | Patricia Gilmer | 0 | Granddaughter | — | Iowa |
| 74 | Clara W. Russell | 69 | Head | — | Illinois |
| 75 | Emeline Collins | 41 | Lodger | Machine Operator | Iowa |
| 76 | Wilfred E. Wehr | 23 | Head | Attendant | Iowa |
| 77 | Eleanor Wehr | 25 | Wife | Dept. Store | Iowa |
| 78 | Ennis L. Shaw | 38 | Head | Shipping Clerk | Missouri |
| 79 | Vera Shaw | 38 | Wife | — | Iowa |
| 80 | Caryle Shaw | 16 | Daughter | — | Missouri |
Pedigree Summary
Robert + 3 siblings
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)