JF
John Foster — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Fergus-County, Montana
Our Model Tree links this John Foster across the 1920, 1930 and 1940 US Censuses in Fergus-County, Montana (XGBoost, ~Confirmed) — first a head (b.~1890), then head of a 8-person household.
Age 50
b. ~1890
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Fergus-County, Montana |
| Surname | Foster |
| Given Name | John C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | School District 112 Breaker |
| 1935 Residence (County) | Fergus |
| Additional Details | |
| Occupation | owner farmer |
| Industry | farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Owner Farmer |
| Township / Ward | School District 112 Breaker |
| Est. Birth Year | ~1890 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Foster | Head | — | 50 | ~1890 |
| Harold Foster | Son | — | 17 | ~1923 |
| Doyle Foster | Son | — | 13 | ~1927 |
| Ronald Foster | Son | — | 6 | ~1934 |
| Everett Foster | Son | — | 22 | ~1918 |
| Eugene Foster | Son | — | 21 | ~1919 |
| Donald Foster | Son | — | 6 | ~1934 |
| Daisy Foster | Spouse | — | 48 | ~1892 |
Census Appearances
1920
Fergus, Montana
Head, age 29
Fergus, Montana · implied b. ~1891 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Foster |
| Given Name | John C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | England |
| Mother's Birthplace | Delaware |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | Emp |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Fergus, Montana
Head, age 40
Fergus, Montana · implied b. ~1890 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Foster |
| Given Name | John C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 22 |
| Father's Birthplace | England |
| Mother's Birthplace | Delaware |
| Occupation | farmer |
| Industry | farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Radio Set | yes |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Fergus-County, Montana
Head, age 50
Fergus-County, Montana · implied b. ~1890 — 8 household members
| Surname | Foster |
| Given Name | John C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | School District 112 Breaker |
| 1935 Residence (County) | Fergus |
| Occupation | owner farmer |
| Industry | farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | H-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 John Foster across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Foster
Head · 1940 · age 50 · b. ~1890 · Montana
★ 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 — Fergus-County, Montana
Open full size
1940 US Federal Census — Fergus-County, Montana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02218-00444)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John C. Foster THIS PERSON | 50 | Head | Owner Farmer | Iowa |
| 2 | Daisy D. Foster | 48 | Wife | — | Iowa |
| 3 | Everett D. Foster | 22 | Son | Farmer Laborer | Iowa |
| 4 | Eugene F. Foster | 21 | Son | Farmer Laborer | Montana |
| 5 | Harold L. Foster | 17 | Son | — | Montana |
| 6 | Doyle J. Foster | 13 | Son | — | Montana |
| 7 | Ronald D. Foster | 6 | Son | — | Montana |
| 8 | Donald W. Foster | 6 | Son | — | Montana |
| 9 | Carlos M. Wallace | 50 | Head | Renter Farmer | Kentucky |
| 10 | Carmena Wallace | 50 | Wife | — | Iowa |
| 11 | Ethel S. Wallace | 20 | Daughter | Stenographer | Montana |
| 12 | Richard M. Wallace | 18 | Son | — | Montana |
| 13 | Loren P. Wallace | 16 | Son | — | Montana |
| 14 | Marjorie B. Wallace | 14 | Daughter | — | Montana |
| 15 | Rosalie B. Wallace | 13 | Daughter | — | Montana |
| 16 | Colleen M. Wallace | 13 | Daughter | — | Montana |
| 17 | Lois A. Wallace | 11 | Daughter | — | Montana |
| 18 | Jeanette P. Wallace | 9 | Daughter | — | Montana |
| 19 | Shirley B. Wallace | 6 | Daughter | — | Montana |
| 20 | Will P. Bezdek | 53 | Head | Owner Farmer | Kansas |
| 21 | Louise C. Bezdek | 54 | Wife | — | Kansas |
| 22 | Edmund R. Bezdek | 25 | Son | Traveling Auditor | Montana |
| 23 | Elsie L. Bezdek | 22 | Daughter | — | Montana |
| 24 | Arnold W. Bezdek | 21 | Son | Delivery Man | Montana |
| 25 | Francis J. Bezdek | 18 | Son | — | Montana |
| 26 | Dorothy J. Bezdek | 24 | Daughter | — | South Dakota |
| 27 | William J. Koza | 28 | Head | Renter Farmer | Nebraska |
| 28 | Emma R. Koza | 25 | Wife | — | Montana |
| 29 | Harry W. Sweeney | 42 | Head | Owner Farmer | Montana |
| 30 | Violet M. Sweeney | 39 | Wife | — | Montana |
| 31 | Fay V. Sweeney | 15 | Daughter | — | Montana |
| 32 | Clarence J. Sweeney | 14 | Son | — | Montana |
| 33 | Effie Sweeney | 12 | Daughter | — | Montana |
| 34 | Wells E. Gage | 73 | Head | Owner-Merchant | Minnesota |
| 35 | Anton J. Storfa | 69 | Head | Owner Farmer | Czecho-Slovakia |
| 36 | Lizzie Storfa | 66 | Wife | — | Czecho-Slovakia |
| 37 | Harry G. Buchele | 42 | Head | Mill Worker | South Dakota |
| 38 | Ida V. Buchele | 42 | Wife | — | Minnesota |
| 39 | Helen M. Buchele | 17 | Daughter | — | Montana |
| 40 | Fred W. Colver | 38 | Head | Renter Farmer | Montana |
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)