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John Bruce — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Linn-County, Iowa
Our Model Tree links this John Bruce across the 1930 and 1940 US Censuses in Linn-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1906), then head of a 5-person household.
Age 34
b. ~1906
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Linn-County, Iowa |
| Surname | Bruce |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Waubeek 7A-1 to 40 |
| 1935 Residence (County) | Linn |
| Additional Details | |
| Occupation | Stone quarry |
| Industry | PW |
| Class of Worker | 1000 |
| Highest Grade | Hs 2 |
| 1935 Residence | 40 |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Stone Quarry |
| Township / Ward | Waubeek 7A1 To 40 |
| Est. Birth Year | ~1906 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Lena Bruce | Spouse | — | 29 | ~1911 |
| Bettie Bruce | Daughter | — | 1 | ~1939 |
| Melvina Bruce | Daughter | — | 5 | ~1935 |
| Martha Bruce | Daughter | — | 4 | ~1936 |
| John Bruce | Head | — | 34 | ~1906 |
Census Appearances
1930
Linn, Iowa
Other, age 23
Linn, Iowa · implied b. ~1907 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bruce |
| Given Name | John |
| Relationship to Head | boarder |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | United States |
| Mother's Birthplace | United States |
| Occupation | Truck driver |
| Industry | Construction Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Linn-County, Iowa
Head, age 34
Linn-County, Iowa · implied b. ~1906 — 5 household members
| Surname | Bruce |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Waubeek 7A-1 to 40 |
| 1935 Residence (County) | Linn |
| Occupation | Stone quarry |
| Industry | PW |
| Class of Worker | 1000 |
| Highest Grade | Hs 2 |
| 1935 Residence | 40 |
| 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 Bruce across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Bruce
Head · 1940 · age 34 · b. ~1906 · 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 — Linn-County, Iowa
Open full size
1940 US Federal Census — Linn-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01175-00124)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Leah Bell Noah | 55 | Wife | — | Iowa |
| 2 | Marian Noah | 25 | Son | — | Iowa |
| 3 | Birdie Crookshank | 40 | Head | Private Trucker | Iowa |
| 4 | Dolly Crookshank | 35 | Wife | — | Iowa |
| 5 | Merna Crookshank | 10 | Daughter | — | Iowa |
| 6 | Glenn Jones | 46 | Head | General Store | Iowa |
| 7 | Alfie Jones | 43 | Wife | — | Iowa |
| 8 | W. F. Mitchell | 45 | Head | General Store | Iowa |
| 9 | Velma Mitchell | 42 | Wife | — | Iowa |
| 10 | Max Mitchell | 19 | Son | Retail Gen. Store | Iowa |
| 11 | F. E. Mitchell | 49 | Head | Tavern | Iowa |
| 12 | Silva Mitchell | 35 | Wife | — | Iowa |
| 13 | William Ross | 50 | Head | Farm | Iowa |
| 14 | Alice Ross | 39 | Wife | — | Iowa |
| 15 | Wallace Ross | 20 | Son | Farm | Iowa |
| 16 | Fay Ross | 18 | Son | Farm | Iowa |
| 17 | Ellen Ross | 16 | Daughter | — | Iowa |
| 18 | Bernita Ross | 13 | Daughter | — | Iowa |
| 19 | John Bruce THIS PERSON | 34 | Head | Stone Quarry | Iowa |
| 20 | Lena Bruce | 29 | Wife | — | Iowa |
| 21 | Melvina Bruce | 5 | Daughter | — | Iowa |
| 22 | Martha Bruce | 4 | Daughter | — | Iowa |
| 23 | Bettie Bruce | 1 | Daughter | — | Iowa |
| 24 | Howard Andrew | 70 | Head | — | Iowa |
| 25 | George Northland | 64 | Brother in law | — | Iowa |
| 26 | Edward Bowdish | 74 | Head | — | Iowa |
| 27 | Nettie Bowdish | 70 | Wife | — | Iowa |
| 28 | Calvin Moore | 36 | Step-son | — | Pennsylvania |
| 29 | George White | 54 | Head | Farm | Iowa |
| 30 | Stanley Sinkey | 49 | Head | Farm | Iowa |
| 31 | Grace Sinkey | 47 | Wife | — | Iowa |
| 32 | Norma Sinkey | 18 | Daughter | Private Family | Iowa |
| 33 | Audrey Sinkey | 16 | Daughter | — | Iowa |
| 34 | Carol Sinkey | 14 | Daughter | — | Iowa |
| 35 | Delbert Sinkey | 12 | Son | — | Iowa |
| 36 | Maxine Sinkey | 9 | Daughter | — | Iowa |
| 37 | Marge Sinkey | 9 | Daughter | — | Iowa |
| 38 | Maggie Parker | 69 | Head | — | Iowa |
| 39 | James Mcfarland | 75 | Head | — | Iowa |
| 40 | Lydia Mcfarland | 74 | Wife | — | 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)