JC
James Cox — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Calhoun-County, Michigan
Our Model Tree links this James Cox across the 1920, 1930 and 1940 US Censuses in Calhoun-County, Michigan (XGBoost, ~Confirmed) — first a head (b.~1884), then head of a 5-person household.
Age 56
b. ~1884
Male
Head
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Calhoun-County, Michigan |
| Surname | Cox |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Battle Creek City |
| 1935 Residence (County) | Calhoun |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Machinist |
| Industry | Grand Trunk |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | No 6 |
| 1935 Residence | Same House |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Machinist |
| Township / Ward | Battle Creek City |
| Est. Birth Year | ~1884 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Helen Cox | Daughter | — | 21 | ~1919 |
| James Cox | Head | — | 56 | ~1884 |
| John Cox | Son | — | 24 | ~1916 |
| James Cox | Son | — | 20 | ~1920 |
| William Cox | Spouse | — | 57 | ~1883 |
Census Appearances
1920
Calhoun, Michigan
Head, age 36
Calhoun, Michigan · implied b. ~1884 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cox |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1907 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | England |
| Occupation | Machinist |
| Industry | Railroad Shop |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth Country | Scotland |
| Year of Naturalization | 1911 |
| Birthplace (normalized) | scotland |
1930
Calhoun, Michigan
Head, age 46
Calhoun, Michigan · implied b. ~1884 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cox |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1906 |
| Age at First Marriage | 28 |
| Father's Birthplace | England |
| Mother's Birthplace | Scotland |
| Occupation | Machinist |
| Industry | R.R. Shops |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 4500 |
| Radio Set | R |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Calhoun-County, Michigan
Head, age 56
Calhoun-County, Michigan · implied b. ~1884 — 5 household members
| Surname | Cox |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Battle Creek City |
| 1935 Residence (County) | Calhoun |
| Naturalization Status | Naturalized |
| Occupation | Machinist |
| Industry | Grand Trunk |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | No 6 |
| 1935 Residence | Same House |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 Cox across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
James Cox
Head · 1940 · age 56 · b. ~1884 · Michigan
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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 — Calhoun-County, Michigan
Open full size
1940 US Federal Census — Calhoun-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01735-00746)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Dorothy Kanyon | 36 | Wife | — | Michigan |
| 42 | James Edward Kanyon | 16 | Step son | — | Michigan |
| 43 | William Leys | 39 | Head | Foreman | Scotland |
| 44 | Edna S. Leys | 44 | Wife | — | Michigan |
| 45 | Richard Leys | 3 | Son | — | Michigan |
| 46 | Russel Sly | 47 | Head | Insurance | Michigan |
| 47 | Edna Sly | 28 | Wife | — | Michigan |
| 48 | Nagel Mary Sly | 18 | Maid | Housekeeper | Michigan |
| 49 | Casper Potter | 57 | Head | Bricklayer | Michigan |
| 50 | Edith S. Potter | 54 | Wife | — | Michigan |
| 51 | Henry J. Wiegmink | 57 | Head | — | Michigan |
| 52 | Mamie Wiegmink | 52 | Wife | — | Michigan |
| 53 | Harold Edmonds | 32 | Boarder | Salesman | Pennsylvania |
| 54 | Alan Wiegmink | 24 | Son | Photographer | Michigan |
| 55 | Winnifred Wiegmink | 12 | Daughter | — | Michigan |
| 56 | Wayne Palmeter | 22 | Head | Dairy | Michigan |
| 57 | Marjorie Palmeter | 21 | Wife | — | Michigan |
| 58 | Donald Palmeter | 1 | Son | — | Michigan |
| 59 | George L. Murray | 46 | Head | Mech Engineer | Illinois |
| 60 | Edna Murray | 45 | Wife | — | Michigan |
| 61 | Galvin Murray | 16 | Son | — | Michigan |
| 62 | Marian Murray | 9 | Daughter | — | Michigan |
| 63 | Mary Alice Murray | 3 | Daughter | — | Michigan |
| 64 | — | None | — | — | — |
| 65 | Joseph S. Brown | 41 | Head | Locomotive Fireman | Canada Eng |
| 66 | Pearl E. Brown | 41 | Wife | — | Canada Eng |
| 67 | Margaret M. Miller | 38 | Head | Draftsman | Michigan |
| 68 | Joan D. Miller | 20 | Daughter | Nurse | Michigan |
| 69 | John R. Cornish | 42 | Head | Locomotive Engineer | Canada Eng |
| 70 | Audrey Cornish | 36 | Wife | — | New York |
| 71 | John R. Cornish | 15 | Son | — | Michigan |
| 72 | George Holley | 27 | Head | Meat Cutter | Oklahoma |
| 73 | Alberta Holley | 32 | Wife | — | Michigan |
| 74 | Gordon Holley | 3 | Son | — | Michigan |
| 75 | Daniel Holley | 1 | Son | — | Michigan |
| 76 | James Cox THIS PERSON | 56 | Head | Machinist | Scotland |
| 77 | William O. Cox | 57 | Wife | — | Scotland |
| 78 | John H. Cox | 24 | Son | Electrician | Michigan |
| 79 | Helen Cox | 21 | Daughter | — | Michigan |
| 80 | James H. Jr. Cox | 20 | Son | Advertising | Michigan |
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)