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John Cowan — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Lake, Indiana
Our Model Tree links this John Cowan across the 1930 and 1940 US Censuses in Lake, Indiana (XGBoost, ~Confirmed) — first a head (b.~1890), then head of a 5-person household.
Age 40
b. ~1890
Male
Head
Born: Pennsylvania
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Lake, Indiana |
| Surname | Cowan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 28 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Credit Manager |
| Industry | Furniture Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 6000 |
| Radio Set | R |
| Veteran | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Credit Manager |
| Township / Ward | Gary City |
| 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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Stockton Cowan | Son | — | 3 | ~1927 |
| Carl Cowan | Son | — | 6 | ~1924 |
| Bruce Cowan | Son | — | 1 | ~1929 |
| Helena Cowan | Spouse | — | 36 | ~1894 |
| John Cowan | Head | — | 40 | ~1890 |
Census Appearances
1930
Lake, Indiana
Head, age 40
Lake, Indiana · implied b. ~1890 — 5 household members
| Surname | Cowan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 28 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Credit Manager |
| Industry | Furniture Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 6000 |
| Radio Set | R |
| Veteran | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Lake-County, Indiana
Head, age 53
Lake-County, Indiana · implied b. ~1887 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cowen |
| Given Name | John Jackson |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Gary City |
| 1935 Residence (County) | Lake |
| Occupation | Credit and Office manager |
| Industry | Retail furniture |
| Class of Worker | PW |
| Hours Worked | 47 |
| Income (1939) | 3120 |
| Highest Grade | C-4 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Cowan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Cowan
Head · 1930 · age 40 · b. ~1890 · Indiana
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Lake, Indiana
Open full size
1930 US Federal Census — Lake, Indiana
Page Contents
50 people indexed on this census page (ia:1930:indianacensus00reel598:0683)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | J. R. Hixon | 36 | Head | Asst. Paymaster | Indiana |
| 2 | Justine Hixon | 31 | Wife | — | Indiana |
| 3 | Elizabeth Hixon | 14 | Daughter | — | Indiana |
| 4 | Bonita Hixon | 8 | Daughter | — | Indiana |
| 5 | John Rule | 55 | Head | Bricklayer | England |
| 6 | Sarah Rule | 48 | Wife | — | England |
| 7 | Rosie Rule | 23 | Daughter | Nurse R. | England |
| 8 | John Rule | 19 | Son | — | England |
| 9 | Mary Rule | 16 | Daughter | — | Indiana |
| 10 | William Rule | 10 | Son | — | Indiana |
| 11 | Jack Mcmahon | 35 | Head | Foreman | Scotland |
| 12 | Jean Mcmahon | 31 | Wife | — | Scotland |
| 13 | Jean Mcmahon | 11 | Daughter | — | Scotland |
| 14 | Irena Mcmahon | 4 | Daughter | — | Indiana |
| 15 | Jack Mcmahon | 2 | Son | — | Indiana |
| 16 | Patrick Harvey | 53 | Lodger | Laborer | Scotland |
| 17 | James Thompson | 30 | Lodger | Pattern Maker | Scotland |
| 18 | Fred Koehler | 37 | Head | Feeder | West Virginia |
| 19 | Bessie Koehler | 26 | Wife | — | Ohio |
| 20 | Frederick Koehler | 8 | Son | — | Ohio |
| 21 | George Koehler | 3 | Son | — | Ohio |
| 22 | John Cowan THIS PERSON | 40 | Head | Credit Manager | Pennsylvania |
| 23 | Helena Cowan | 36 | Wife | — | Illinois |
| 24 | Carl Cowan | 6 | Son | — | Indiana |
| 25 | Stockton Cowan | 3 | Son | — | Indiana |
| 26 | Bruce Cowan | 1 | Son | — | Indiana |
| 27 | Lloyd Stockman | 50 | Head | Carpenter | Indiana |
| 28 | Emma Stockman | 45 | Wife | — | Indiana |
| 29 | Dora Stockman | 14 | Daughter | — | Indiana |
| 30 | Thos. Reaside | 22 | Son-in-law | Clerk | Illinois |
| 31 | Vesta Reaside | 17 | Daughter | — | Indiana |
| 32 | Harry Hardy | 23 | Son-in-law | Carpenter | Ohio |
| 33 | Annie Hardy | 19 | Daughter | — | Indiana |
| 34 | Richard H. Burns | 51 | Head | Electrician | England |
| 35 | Susie Burns | 50 | Wife | — | England |
| 36 | Enid Burns | 16 | Daughter | — | Indiana |
| 37 | John Reheo | 62 | Head | — | Michigan |
| 38 | Julia Reheo | 60 | Wife | — | Hungary |
| 39 | Homer Badgett | 42 | Head | Engineer | Illinois |
| 40 | Florence Badgett | 25 | Wife | — | Illinois |
| 41 | Larry Badgett | 6 | Son | — | Illinois |
| 42 | Mark Badgett | 2 | Son | — | Illinois |
| 43 | Homer Badgett | 1 | Son | — | Indiana |
| 44 | Hay Macdonald | 60 | Head | Clerk | Scotland |
| 45 | Lillian Macdonald | 59 | Wife | — | Scotland |
| 46 | William Beveridge | 36 | Head | Welder | Scotland |
| 47 | Jeanie Beveridge | 38 | Wife | — | Scotland |
| 48 | Margaret Beveridge | 16 | Daughter | — | Scotland |
| 49 | — | None | — | — | — |
| 50 | — | None | — | — | — |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)