RB
Robert Barnes — 1940 US Census Record
Model Tree available1940 United States Federal Census · Polk-County, Iowa
Our Model Tree links this Robert Barnes across the 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed), with identified parents William & Hattie — first a son (b.~1892), then head of a 2-person household.
Age 48
b. ~1892
Male
Son
Born: Washington
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Iowa |
| Surname | Barnes |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Occupation | Trucking |
| Industry | Private work |
| Class of Worker | OA |
| Hours Worked | 34 |
| Income (1939) | 150 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Trucking |
| Township / Ward | Des Moines 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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Sarah Barnes | Head | — | 70 | ~1870 |
| Robert Barnes | Son | — | 48 | ~1892 |
Census Appearances
1920
Polk, Iowa
Son, age 27
Polk, Iowa · implied b. ~1893 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Barnes |
| Given Name | Robert H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Labor |
| Industry | Rail Road |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
Polk, Iowa
Son, age 38
Polk, Iowa · implied b. ~1892 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Barnes |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Laborer |
| Industry | Odd Jobs |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
Polk-County, Iowa
Son, age 48
Polk-County, Iowa · implied b. ~1892 — 2 household members
| Surname | Barnes |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Occupation | Trucking |
| Industry | Private work |
| Class of Worker | OA |
| Hours Worked | 34 |
| Income (1939) | 150 |
| Highest Grade | No 8 |
| 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 Barnes across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Barnes (~0.92 confidence) and mother Hattie Barnes (~0.92 confidence) and mother Sarah Barnes (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Barnes
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Hattie Barnes
b. ~1869
Source mother
● Household
· direct · ~0.92
Mother
Sarah Barnes
b. ~1870
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Barnes
Son · 1940 · age 48 · b. ~1892 · 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-t0627-01193-00875)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Gloria L Sherbo | 12 | daughter | — | Iowa |
| 42 | Barbara Jean Sherbo | 10 | daughter | — | Iowa |
| 43 | Eugene G Sherbo | 9 | son | — | Iowa |
| 44 | Hugh E Nichols | 47 | Head | Laborer | Iowa |
| 45 | Evelyn R Nichols | 30 | Wife | — | Iowa |
| 46 | Rosa Lee Nichols | 12 | daughter | — | Iowa |
| 47 | Norman H Nichols | 10 | son | — | Iowa |
| 48 | Coleen E Nichols | 8 | daughter | — | Wyoming |
| 49 | John P Nichols | 7 | son | — | Iowa |
| 50 | Eligio Logli | 66 | Head | Miner | Italy |
| 51 | Teresia Logli | 62 | Wife | — | Italy |
| 52 | Emilio Logli | 39 | Son | Clerk | Italy |
| 53 | Albert Silio | 34 | Head | Chemist | Iowa |
| 54 | Catherine Silio | 30 | Wife | — | Iowa |
| 55 | Ralph G Silio | 0 | son | — | Iowa |
| 56 | H Mckinney | 64 | Head | — | Germany |
| 57 | Katherine F Swatta | 37 | daughter | Clerical | Iowa |
| 58 | Ray H Swan | 52 | Head | Brakeman | Missouri |
| 59 | Blanch Swan | 47 | Wife | Agent | Missouri |
| 60 | Forrest Swan | 26 | son | — | Missouri |
| 61 | Horace G Kays | 50 | Head | Engineer | Iowa |
| 62 | Rose Kays | 54 | Wife | — | Iowa |
| 63 | Joe Mccauley | 60 | Brother in law | Electrician | Iowa |
| 64 | T. E. Simons | 49 | Head | Switch Engine | Iowa |
| 65 | Blanche Simons | 44 | Wife | — | Iowa |
| 66 | Georgia A Simons | 26 | daughter | Clerk | Iowa |
| 67 | Tom Jr Simons | 16 | son | — | Iowa |
| 68 | Ralph L Price | 24 | Head | Laborer | Kansas |
| 69 | Ruth Price | 22 | Wife | Typist | Iowa |
| 70 | Pearl S Smith | 53 | Head | — | Iowa |
| 71 | John H Smith | 27 | son | Truck Driver | Iowa |
| 72 | Henry Luechinger | 80 | Father | — | Switzerland |
| 73 | Anna S Luechinger | 81 | Mother | — | Wisconsin |
| 74 | John Harrington | 58 | Head | Engineer | New York |
| 75 | Ena L Harrington | 54 | Wife | — | Nebraska |
| 76 | Dave S Fillman | 26 | Head | Fireman | Iowa |
| 77 | Luba A Fillman | 21 | Wife | — | Iowa |
| 78 | Judith Ann Fillman | 0 | Infant | — | Iowa |
| 79 | Sarah A Barnes | 70 | Head | — | England |
| 80 | Robert Barnes THIS PERSON | 48 | Son | Trucking | Washington |
Pedigree Summary
Robert
Gen 1 · 3 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)