GC
George Carlson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Clayton-County, Iowa
Our Model Tree links this George Carlson across the 1930 and 1940 US Censuses in Clayton-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 6-person household.
Age 20
b. ~1920
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Clayton-County, Iowa |
| Surname | Carlson |
| Given Name | George W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Mendon Township |
| 1935 Residence (County) | Clayton |
| Additional Details | |
| Occupation | Farm hand |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 55 |
| Income (1939) | 270 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farm Hand |
| Township / Ward | Mendon Township |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to George | Age | Birth yr |
|---|---|---|---|---|
| Walter Carlson | Son | — | 15 | ~1925 |
| Marie Carlson | Daughter | — | 18 | ~1922 |
| Carl Carlson | Head | — | 61 | ~1879 |
| George Carlson | Son | — | 20 | ~1920 |
| Emmett Carlson | Spouse | — | 57 | ~1883 |
| Carl Carlson | Son | — | 21 | ~1919 |
Census Appearances
1930
Clayton, Iowa
Son, age 9
Clayton, Iowa · implied b. ~1921 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | George W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Clayton-County, Iowa
Son, age 20
Clayton-County, Iowa · implied b. ~1920 — 6 household members
| Surname | Carlson |
| Given Name | George W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Mendon Township |
| 1935 Residence (County) | Clayton |
| Occupation | Farm hand |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 55 |
| Income (1939) | 270 |
| Highest Grade | No 8 |
| 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 George Carlson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
George Carlson
Son · 1940 · age 20 · b. ~1920 · Iowa
★ You are viewing this record
Sibling
Walter Carlson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carl Carlson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Carlson
Sibling · 1940 · age 18
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 — Clayton-County, Iowa
Open full size
1940 US Federal Census — Clayton-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01149-00545)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Audrey E Sanwell | 17 | Housekeeper | Housekeeper | Iowa |
| 42 | William A Sanwell | 5 | Housekeeper | — | Iowa |
| 43 | Ellen Richetty | 69 | Mother | — | England |
| 44 | Chadwick Barker | 77 | Uncle | — | England |
| 45 | Raymond J Cordes | 37 | Head | Farmer | Iowa |
| 46 | Alice M Cordes | 36 | Wife | — | Iowa |
| 47 | William J Trades | 78 | Hired hand | — | Iowa |
| 48 | Carl A Carlson | 61 | Head | Farmer | Sweden |
| 49 | Emmett A Carlson | 57 | Wife | — | Iowa |
| 50 | Carl V Carlson | 21 | Son | Farm Hand | Iowa |
| 51 | George W Carlson THIS PERSON | 20 | Son | Farm Hand | Iowa |
| 52 | Marie C Carlson | 18 | Daughter | Typist | Iowa |
| 53 | Walter H Carlson | 15 | Son | — | Iowa |
| 54 | Louis J Erikson | 61 | Head | Farmer | Iowa |
| 55 | Mary Erikson | 63 | Wife | — | Iowa |
| 56 | Otto A Hallberg | 31 | Head | Farm Hand | Iowa |
| 57 | August Hallberg | 69 | Father | — | Sweden |
| 58 | Sherman W Mitchell | 37 | Head | Laborer | Arkansas |
| 59 | Mary E Mitchell | 31 | Wife | — | Iowa |
| 60 | Lois J Mitchell | 5 | Daughter | — | Iowa |
| 61 | Sherman M Mitchell | 4 | Daughter | — | Iowa |
| 62 | Dale W Mitchell | 2 | Son | — | Iowa |
| 63 | Glenda L Mitchell | 2 | Daughter | — | Iowa |
| 64 | Emma A Mitchell | 70 | Mother | — | Iowa |
| 65 | Tilford B Peterson | 37 | Head | Farmer | Iowa |
| 66 | Bessie M Peterson | 27 | Wife | — | Iowa |
| 67 | Peter Peterson | 60 | Father | Farm Hand | Iowa |
| 68 | Nels A Isakson | 74 | Head | Farmer | Sweden |
| 69 | Mary E Isakson | 59 | Wife | — | Minnesota |
| 70 | Ida M Isakson | 63 | Sister | — | Iowa |
| 71 | Left Vacant By Mistake | None | — | — | — |
| 72 | William E Miller | 44 | Head | Farmer | Iowa |
| 73 | Annie G Miller | 74 | Mother | — | Iowa |
| 74 | Albert J Hallberg | 38 | Head | Farmer | Iowa |
| 75 | Geraldine G Hallberg | 33 | Wife | — | Iowa |
| 76 | Anna A Trunn | 65 | Lodger | — | Iowa |
| 77 | Carl H A Miller | 50 | Head | Farmer | Nebraska |
| 78 | Marguerite O Miller | 46 | Wife | Janitor | Iowa |
| 79 | Dorothy J Miller | 19 | Daughter | Stenographer | Iowa |
| 80 | Meda C Miller | 17 | Daughter | — | 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)