JF
James Foster — 1940 US Census Record
Model Tree available1940 United States Federal Census · Pottawattamie-County, Iowa
Our Model Tree links this James Foster across the 1920, 1930 and 1940 US Censuses in Pottawattamie-County, Iowa (XGBoost, ~Confirmed), with identified parents Martha & John — first a son (b.~1892), then head of a 3-person household.
Age 48
b. ~1892
Male
Son
Born: Nebraska
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Pottawattamie-County, Iowa |
| Surname | Foster |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Single |
| Birthplace | Nebraska |
| 1935 Residence (City) | Council Bluffs |
| 1935 Residence (County) | Pottawattamie |
| Additional Details | |
| Occupation | Machinist |
| Industry | Railroad |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2000 |
| Highest Grade | 4 |
| 1935 Residence | Same place |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
| Occupation | Machinist |
| Township / Ward | Council Bluffs |
| 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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| William Foster | Head | — | 72 | ~1868 |
| Vera Lauched | Other | — | 59 | ~1881 |
| James Foster | Son | — | 48 | ~1892 |
Census Appearances
1920
Pottawattamie, Iowa
Son, age 28
Pottawattamie, Iowa · implied b. ~1892 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Foster |
| Given Name | James L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Indiana |
| Occupation | Machinist |
| Industry | C B & Q R R |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1930
Pottawattamie, Iowa
Son, age 38
Pottawattamie, Iowa · implied b. ~1892 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Foster |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Indiana |
| Occupation | Machinist helper |
| Industry | Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1940
Pottawattamie-County, Iowa
Son, age 48
Pottawattamie-County, Iowa · implied b. ~1892 — 3 household members
| Surname | Foster |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Single |
| Birthplace | Nebraska |
| 1935 Residence (City) | Council Bluffs |
| 1935 Residence (County) | Pottawattamie |
| Occupation | Machinist |
| Industry | Railroad |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2000 |
| Highest Grade | 4 |
| 1935 Residence | Same place |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
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 James Foster across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Martha Foster (~0.92 confidence) and father John Foster (~0.92 confidence) and mother Martha Foster (~0.92 confidence) and father William Foster (~0.92 confidence) and father William Foster (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Martha Foster
b. ~1855
Source mother
● Household
· direct · ~0.92
Father
John Foster
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Martha Foster
b. ~1867
Source mother
● Household
· direct · ~0.92
Father
William Foster
b. ~1868
Source father
● Household
· direct · ~0.92
Father
William Foster
b. ~1868
Source father
● Household
· direct · ~0.92
This person
Anchor record
James Foster
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 — Pottawattamie-County, Iowa
Open full size
1940 US Federal Census — Pottawattamie-County, Iowa
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01198-00754)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Walter Barker | 31 | Head | Truck Driver | Iowa |
| 42 | Dorothy Barker | 34 | Wife | — | Iowa |
| 43 | Jo-Ann Barker | 8 | Daughter | — | Iowa |
| 44 | Betty Lee Barker | 2 | Daughter | — | Iowa |
| 45 | Leonard Christenson | 28 | Head | Sanitary Dept | Iowa |
| 46 | Geraldine Christenson | 23 | Wife | — | Iowa |
| 47 | Mark Christenson | 5 | Son | — | Iowa |
| 48 | Mary Miller | 59 | Head | House Work | Iowa |
| 49 | Paul E Miller | 19 | Son | — | Iowa |
| 50 | Genevieve Miller | 17 | Daughter | — | Iowa |
| 51 | Betty Miller | 15 | Daughter | — | Iowa |
| 52 | Clyde Miller | 13 | Son | — | Iowa |
| 53 | Charles Cook | 51 | Head | Machinist Helper | Illinois |
| 54 | Dorothy Cook | 52 | Wife | — | Denmark |
| 55 | Ben Kooler | 55 | Head | Grocery Store | Russia |
| 56 | Nettie Kooler | 43 | Wife | — | Illinois |
| 57 | Douglas Kooler | 15 | Son | — | Iowa |
| 58 | Harry Kooler | 11 | Son | — | Iowa |
| 59 | Arlene Boardman | 17 | Maid | House Keeper | Nebraska |
| 60 | Ralph Russell | 49 | Head | Car Inspector | Iowa |
| 61 | Bernice Russell | 34 | Wife | — | Missouri |
| 62 | Ralph Russell | 17 | Son | Car Wash | Iowa |
| 63 | Gail Russell | 15 | Son | — | Iowa |
| 64 | Ronnie Russell | 7 | Son | — | Iowa |
| 65 | Sophia Rigel | 71 | Mother-in-law | — | Kentucky |
| 66 | Vivian Stumpf | 43 | Head | Clerk | Iowa |
| 67 | Wilsford David Stumpf | 85 | Father | — | Iowa |
| 68 | Mary Stumpf | 73 | Mother | — | Missouri |
| 69 | Arthur Kottwitz | 44 | Brother-in-law | Machinist | Missouri |
| 70 | Rena Kottwitz | 41 | Sister | Clerk | Iowa |
| 71 | William Foster | 72 | Head | Retired | Iowa |
| 72 | James Foster THIS PERSON | 48 | Son | Machinist | Nebraska |
| 73 | Vera Lauched | 59 | Sister | — | Iowa |
| 74 | Nathan Mcdaniel | 48 | Head | Pioneer Ice | Iowa |
| 75 | Dora Mcdaniel | 48 | Wife | — | Iowa |
| 76 | Orville Mcdaniel | 22 | Son | Ice-Man | Iowa |
| 77 | Elizabeth Mcdaniel | 22 | Daughter-in-law | — | Iowa |
| 78 | Dorothy Mcdaniel | 12 | Daughter | — | Iowa |
Pedigree Summary
James
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)