RL
Robert Long — 1940 US Census Record
Model Tree available1940 United States Federal Census · Polk-County, Iowa
Our Model Tree links this Robert Long across the 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed), with identified parents Virgil & Virgil — first a son (b.~1919), then head of a 3-person household.
Age 21
b. ~1919
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Iowa |
| Surname | Long |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Occupation | Insurance Rater |
| Industry | Insurance Bureau |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Insurance Rater |
| Township / Ward | Des Moines 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 |
|---|---|---|---|---|
| Virgil Long | Head | — | 48 | ~1892 |
| Robert Long | Son | — | 21 | ~1919 |
| Elizabeth Long | Spouse | — | 46 | ~1894 |
Census Appearances
1920
Polk, Iowa
Son, age 1
Polk, Iowa · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | Robert M. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Texas |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Son, age 11
Polk, Iowa · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Texas |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Son, age 21
Polk-County, Iowa · implied b. ~1919 — 3 household members
| Surname | Long |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Occupation | Insurance Rater |
| Industry | Insurance Bureau |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 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 Robert Long across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Virgil Long (~0.92 confidence) and father Virgil Long (~0.92 confidence) and mother Elizabeth Long (~0.92 confidence) and mother Elizabeth Long (~0.92 confidence) and father Virgil Long (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Virgil Long
b. ~1892
Source father
● Household
· direct · ~0.92
Father
Virgil Long
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Long
b. ~1894
Source mother
● Household
· direct · ~0.92
Mother
Elizabeth Long
b. ~1895
Source mother
● Household
· direct · ~0.92
Father
Virgil Long
b. ~1896
Source father
● Household
· direct · ~0.92
This person
Anchor record
Robert Long
Son · 1940 · age 21 · b. ~1919 · 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
37 people indexed on this census page (nara:1940:m-t0627-01197-00637)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Reynold C. Oberg | 44 | Head | Janitor | Iowa |
| 42 | Mary Anne Oberg | 40 | Wife | — | Iowa |
| 43 | Virginia F. Oberg | 16 | Daughter | Music Teacher | Iowa |
| 44 | Anita P. Oberg | 13 | Daughter | — | Iowa |
| 45 | Virgil M. Long | 48 | Head | Print + Box Supervisor | Iowa |
| 46 | Elizabeth W. Long | 46 | Wife | — | Iowa |
| 47 | Robert Long THIS PERSON | 21 | Son | Insurance Rater | Iowa |
| 48 | Gerald H. Simpson | 49 | Head | Laborer | Illinois |
| 49 | Cora V. B. Simpson | 49 | Wife | — | Iowa |
| 51 | Emery B. Dewitt | 68 | Head | Laborer | Iowa |
| 52 | Bertha H. Dewitt | 55 | Wife | — | Iowa |
| 53 | Anna E. Reed | 27 | Head | — | Iowa |
| 54 | Richard E. Reed | 11 | Son | — | Iowa |
| 55 | Betty Ann Reed | 7 | Daughter | — | Iowa |
| 56 | Neal E. Reed | 6 | Son | — | Iowa |
| 57 | Geraldine E. Reed | 4 | Daughter | — | Iowa |
| 58 | Donald J. Reed | 1 | Son | — | Iowa |
| 59 | Dorothy L. Reed | 0 | Daughter | — | Iowa |
| 60 | Dale W. Clark | 21 | Head | Tire Inspector | Iowa |
| 61 | Agnes Clark | 20 | Wife | — | Missouri |
| 62 | Patricia Ann Clark | 4 | Daughter | — | Iowa |
| 63 | Dale Jr. Clark | 2 | Son | — | Iowa |
| 64 | Curtis W. Tyler | 31 | Head | Machinist | Iowa |
| 65 | Bernice C. Tyler | 25 | Wife | — | Iowa |
| 66 | Judy D. Tyler | 1 | Daughter | — | Iowa |
| 67 | Martha D. Long | 70 | Head | — | Iowa |
| 68 | Erven N. Polson | 42 | Head | Shipping Clerk | Iowa |
| 69 | Jeanet Q. Polson | 42 | Wife | — | Iowa |
| 70 | Merle Jean Polson | 20 | Daughter | Dietician | Iowa |
| 71 | Gloria A. Polson | 15 | Daughter | — | Iowa |
| 72 | Erven R. Polson | 6 | Son | — | Iowa |
| 73 | Arthur S. Beeler | 53 | Head | Laborer | Iowa |
| 74 | Rose H. Beeler | 46 | Wife | — | Germany |
| 75 | Elizabeth H. Beeler | 20 | Daughter | Office Steno. | Iowa |
| 76 | Regina B. Beeler | 17 | Daughter | — | Iowa |
| 77 | Gilbert D. Beeler | 12 | Son | — | Iowa |
| 78 | Elizabeth H. Beeler | 86 | Mother | — | England |
Pedigree Summary
Robert
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)