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John Cowan — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Los Angeles, California
Our Model Tree links this John Cowan across the 1920 and 1930 US Censuses in Los Angeles, California (XGBoost, ~Confirmed) — first a head (b.~1863), then head of a 6-person household.
Age 67
b. ~1863
Male
Head
Born: Scotland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Los Angeles, California |
| Surname | Cowan |
| Given Name | John M |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 67 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1880 |
| Age at First Marriage | 24 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Additional Details | |
| Occupation | Laborer |
| Industry | Lumber Yard |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 50 |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Laborer |
| Township / Ward | Los Angeles City |
| Est. Birth Year | ~1863 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Cowan | Head | — | 67 | ~1863 |
| Agnes Baker | Daughter | — | 33 | ~1897 |
| Lenora Cowan | Daughter | — | 21 | ~1909 |
| Janet Cowan | Spouse | — | 63 | ~1867 |
| Betty Baker | Daughter | — | 10 | ~1920 |
| John Cowan | Son | — | 34 | ~1896 |
Census Appearances
1920
Los Angeles, …
Head, age 53
Los Angeles, California · implied b. ~1867 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cowan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1887 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Laborer |
| Industry | unemployed |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Scotch |
| Home Owned/Rented | R |
| Birth Country | Scotland |
| Year of Naturalization | 1893 |
| Birthplace (normalized) | scotland |
1930
Los Angeles, …
Head, age 67
Los Angeles, California · implied b. ~1863 — 6 household members
| Surname | Cowan |
| Given Name | John M |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 67 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1880 |
| Age at First Marriage | 24 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Laborer |
| Industry | Lumber Yard |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 50 |
| 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 John Cowan across 2 US Census years (1920 and 1930) in Los Angeles, California, using XGBoost record linkage.
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This person
Anchor record
John Cowan
Head · 1930 · age 67 · b. ~1863 · California
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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 — Los Angeles, California
Open full size
1930 US Federal Census — Los Angeles, California
Page Contents
48 people indexed on this census page (ia:1930:californiacensus00reel140:0005)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Franklin F Briles | 45 | Head | Manufacturer | Missouri |
| 2 | Emma M Briles | 47 | Wife | — | Illinois |
| 3 | Paul R Briles | 21 | Son | — | California |
| 4 | Franklin F Jr Briles | 8 | Son | — | California |
| 5 | George Tiller | 54 | Head | Manufacturer | California |
| 6 | Belle Tiller | 52 | Wife | — | Michigan |
| 7 | Lucile Tiller | 20 | Daughter | — | Colorado |
| 8 | Gladys F Barrington | 44 | Wife | — | Illinois |
| 9 | Eva M King | 30 | Roomer | — | Indiana |
| 10 | Bernhardt Edvag | 49 | Head | — | Italy |
| 11 | Lenida Edvag | 47 | Wife | — | Italy |
| 12 | Rose Edvag | 22 | Daughter | Secretary | California |
| 13 | Joseph Edvag | 18 | Son | — | California |
| 14 | Adaline Edvag | 9 | Daughter | — | California |
| 15 | Alexander Mendelsohn | 60 | Head | Retired | Poland |
| 16 | Laura I Mendelsohn | 54 | Wife | — | New York |
| 17 | Robert Mendelsohn | 20 | Son | — | California |
| 18 | John M Cowan THIS PERSON | 67 | Head | Laborer | Scotland |
| 19 | Janet Cowan | 63 | Wife | — | Scotland |
| 20 | Agnes Baker | 33 | Daughter | Cashier | Pennsylvania |
| 21 | Betty Baker | 10 | Daughter | — | Utah |
| 22 | John M Jr Cowan | 34 | Son | Janitor | Pennsylvania |
| 23 | Lenora G Cowan | 21 | Daughter | — | Pennsylvania |
| 24 | Frank H Baden | 25 | Head | Architect | Nebraska |
| 25 | Jane Baden | 25 | Wife | — | Kansas |
| 26 | Ralph J Vandervoon | 37 | Head | Office Manager | Illinois |
| 27 | Jessie Vandervoon | 33 | Wife | — | Illinois |
| 28 | Fletcher Vandervoon | 30 | Son | — | Missouri |
| 29 | Olee C Nelson | 67 | Head | — | United States |
| 30 | Edith Nelson | 61 | Wife | — | Michigan |
| 31 | George M Waldron | 37 | Head | Salesman | Canada English |
| 32 | Helen Waldron | 33 | Wife | — | Canada English |
| 33 | Newton W Stone | 39 | Head | Salesman | Tennessee |
| 34 | Edith M Stone | 49 | Wife | — | Texas |
| 35 | Betty Edith L Stone | 18 | Daughter | — | California |
| 36 | Ruth Y Coston | 28 | Daughter | — | Iowa |
| 37 | William H Marburg | 33 | Roomer | Stenographer | Tennessee |
| 38 | Samuel Weed | 67 | Head | Clerk | Scotland |
| 39 | Jean S Weed | 63 | Wife | — | Scotland |
| 40 | Arthea B Cooper | 39 | Roomer | Seamstress | Texas |
| 41 | Elizabeth Stick | 29 | Roomer | Accountant | Indiana |
| 42 | Lelia M Little | 34 | Head | Social Worker | Ohio |
| 43 | Anna B Kelly | 34 | Roomer | — | Oklahoma |
| 44 | Royal Wheeler | 46 | Head | Salesman | Texas |
| 45 | Madeline Wheeler | 34 | Wife | — | Missouri |
| 46 | Royal C Wheeler | 5 | Son | — | California |
| 47 | Mary A Wheeler | 5 | Daughter | — | California |
| 48 | Ella M Prece | 65 | Maid | Maid | Pennsylvania |
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)