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James Spencer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marshall-County, Iowa
Our Model Tree links this James Spencer across the 1930 and 1940 US Censuses in Marshall-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1895), then head of a 14-person household.
Age 45
b. ~1895
Male
Head
Born: Alabama
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Marshall-County, Iowa |
| Surname | Spencer |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (City) | Marshalltown |
| 1935 Residence (County) | Marshall |
| Additional Details | |
| Occupation | Fireman |
| Industry | Utilities Co |
| Class of Worker | PW |
| Income (1939) | 1920 |
| Highest Grade | No |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Occupation | Fireman |
| Township / Ward | Marshalltown |
| Est. Birth Year | ~1895 |
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.
14 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Odell Spencer | Daughter | — | 20 | ~1920 |
| Ruby Spencer | Daughter | — | 13 | ~1927 |
| Maxine Spencer | Daughter | — | 18 | ~1922 |
| Geraldine Spencer | Daughter | — | 4 | ~1936 |
| Mildred Spencer | Daughter | — | 11 | ~1929 |
| Ada Spencer | Daughter | — | 15 | ~1925 |
| Thelma Spencer | Daughter | — | 10 | ~1930 |
| James Spencer | Head | — | 45 | ~1895 |
| Eugene Spencer | Son | — | 6 | ~1934 |
| Gary Spencer | Son | — | 1 | ~1939 |
| James Spencer | Son | — | 12 | ~1928 |
| Andrew Spencer | Son | — | 8 | ~1932 |
| John Spencer | Son | — | 23 | ~1917 |
| Bessie Spencer | Spouse | — | 40 | ~1900 |
Census Appearances
1930
Marshall, Iowa
Head, age 34
Marshall, Iowa · implied b. ~1896 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Spencer |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Alabama |
| Age at First Marriage | 18 |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Occupation | Gas blower |
| Industry | Light Company |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 1200 |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Marshall-County, Iowa
Head, age 45
Marshall-County, Iowa · implied b. ~1895 — 14 household members
| Surname | Spencer |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (City) | Marshalltown |
| 1935 Residence (County) | Marshall |
| Occupation | Fireman |
| Industry | Utilities Co |
| Class of Worker | PW |
| Income (1939) | 1920 |
| Highest Grade | No |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
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 Spencer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Spencer
Head · 1940 · age 45 · b. ~1895 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Marshall-County, Iowa
Open full size
1940 US Federal Census — Marshall-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01182-00653)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | M. Robert | 12 | Son | — | Iowa |
| 2 | B. E. White | 62 | Head | Maintenance Man | Iowa |
| 3 | Anna Martha White | 60 | Wife | Housewife | Iowa |
| 4 | Pearl White | 26 | Daughter | Teacher | Iowa |
| 5 | Robert P. White | 21 | Son | Relief Worker | Iowa |
| 6 | Dorothy J. White | 17 | Daughter | N Y A | Iowa |
| 7 | Doris L. White | 15 | Daughter | — | Iowa |
| 8 | James Spencer THIS PERSON | 45 | Head | Fireman | Alabama |
| 9 | Bessie Spencer | 40 | Wife | Housewife | Alabama |
| 10 | John Spencer | 23 | Son | — | Iowa |
| 11 | Odell Spencer | 20 | Daughter | Part Time | Iowa |
| 12 | Maxine Spencer | 18 | Daughter | — | Iowa |
| 13 | Ada Spencer | 15 | Daughter | — | Iowa |
| 14 | Ruby Spencer | 13 | Daughter | — | Iowa |
| 15 | James Jr. Spencer | 12 | Son | — | Iowa |
| 16 | Mildred Spencer | 11 | Daughter | — | Iowa |
| 17 | Thelma Spencer | 10 | Daughter | — | Iowa |
| 18 | Andrew Spencer | 8 | Son | — | Iowa |
| 19 | Eugene Spencer | 6 | Son | — | Iowa |
| 20 | Geraldine Spencer | 4 | Daughter | — | Iowa |
| 21 | Gary Spencer | 1 | Son | — | Iowa |
| 22 | James H. Balanek | 51 | Head | Mechanic | Bohemia |
| 23 | Helen J. Balanek | 45 | Wife | Housewife | Iowa |
| 24 | Catherine C. Balanek | 23 | Daughter | Housewife | Iowa |
| 25 | Leo Edward Balanek | 19 | Son | Apprentice Blacksmith | Iowa |
| 26 | Dorothy Anne Balanek | 15 | Daughter | — | Iowa |
| 27 | Joseph John Balanek | 14 | Son | — | Iowa |
| 28 | Ruth E. Balanek | 12 | Daughter | — | Iowa |
| 29 | Evelyn A. Balanek | 10 | Daughter | — | Iowa |
| 30 | Veronica J. Balanek | 8 | Daughter | — | Iowa |
| 31 | Bernadette J. Balanek | 4 | Daughter | — | Iowa |
| 32 | Bernard G. Balanek | 1 | Son | — | Iowa |
| 33 | Arin Ahrens | 49 | Head | Supply Man | Iowa |
| 34 | Bernice Ahrens | 34 | Wife | Housewife | Iowa |
| 35 | Ira Ahrens | 12 | Son | — | Iowa |
| 36 | Myron Ahrens | 9 | Son | — | Iowa |
| 37 | Ethel Ahrens | 7 | Daughter | — | Iowa |
| 38 | Phillip Ahrens | 1 | Son | — | Iowa |
| 39 | Alice Gross | 53 | Head | Housewife | Missouri |
| 40 | Edgar Gross | 19 | Son | — | 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)