JK
John Kerr — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Alameda-County, California
Our Model Tree links this John Kerr across the 1930 and 1940 US Censuses in Alameda-County, California (XGBoost, ~Confirmed) — first a head (b.~1887), then head of a 6-person household.
Age 53
b. ~1887
Male
Head
Born: Northern Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Alameda-County, California |
| Surname | Kerr |
| Given Name | John J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Northern Ireland |
| 1935 Residence (City) | OAKLAND |
| 1935 Residence (County) | ALAMEDA |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birthplace (normalized) | northern ireland |
| Township / Ward | Oakland |
| Est. Birth Year | ~1887 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Eva Kerr | Spouse | — | 48 | ~1892 |
| John Kerr | Son | — | 20 | ~1920 |
| Albert Kerr | Son | — | 16 | ~1924 |
| John Kerr | Head | — | 53 | ~1887 |
| Robert Kerr | Son | — | 14 | ~1926 |
| George Kerr | Son | — | 18 | ~1922 |
Census Appearances
1930
Alameda, California
Head, age 42
Alameda, California · implied b. ~1888 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kerr |
| Given Name | John G. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Northern Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1903 |
| Age at First Marriage | 28 |
| Father's Birthplace | Northern Ireland |
| Mother's Birthplace | Northern Ireland |
| Occupation | factory worker |
| Industry | oil company |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 5500 |
| Radio Set | R |
| Veteran | No |
| Birthplace (normalized) | northern ireland |
1940
Alameda-County, California
Head, age 53
Alameda-County, California · implied b. ~1887 — 6 household members
| Surname | Kerr |
| Given Name | John J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Northern Ireland |
| 1935 Residence (City) | OAKLAND |
| 1935 Residence (County) | ALAMEDA |
| Naturalization Status | Naturalized |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birthplace (normalized) | northern ireland |
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 Kerr across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Kerr
Head · 1940 · age 53 · b. ~1887 · California
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Alameda-County, California
Open full size
1940 US Federal Census — Alameda-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00446-00078)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank C Russell | 43 | Head | Pressman | Massachusetts |
| 2 | Frances M Russell | 35 | Wife | — | California |
| 3 | William F Russell | 4 | Son | — | California |
| 4 | Donald R Mccarty | 14 | Son | — | California |
| 5 | George Kerr | 54 | Head | Shoe Maker | Northern Ireland |
| 6 | Mabel W Kerr | 54 | Wife | — | California |
| 7 | George S Kerr | 27 | Son | Sales Clerk | California |
| 8 | John J Kerr THIS PERSON | 53 | Head | — | Northern Ireland |
| 9 | Eva Kerr | 48 | Wife | — | California |
| 10 | John M Jr Kerr | 20 | Son | New Worker | California |
| 11 | George D Kerr | 18 | Son | New Worker | California |
| 12 | Albert J Kerr | 16 | Son | — | California |
| 13 | Robert D Kerr | 14 | Son | — | California |
| 14 | Claude F Couchman | 52 | Head | Pressman | Colorado |
| 15 | Clara F Couchman | 48 | Wife | — | California |
| 16 | Frances E Couchman | 24 | Daughter | Typist | California |
| 17 | Marjorie H Couchman | 22 | Daughter | Bookkeeper | California |
| 18 | Walter N Couchman | 19 | Son | Press Helper | California |
| 19 | Peter A Campi | 25 | Head | Bar-Tender | California |
| 20 | Carmila E Campi | 24 | Wife | Wrapper | California |
| 21 | Robert H Detloff | 28 | Head | Attendant | So. Dakota |
| 22 | Clara C Detloff | 28 | Wife | — | Iowa |
| 23 | Sandra M Detloff | 5 | Daughter | — | Iowa |
| 24 | Warren N Detloff | 26 | Brother | Driver | Iowa |
| 25 | Lamar Black | 53 | Head | Mail Carrier | Illinois |
| 26 | Alice Black | 43 | Wife | — | California |
| 27 | William J Black | 17 | Son | — | California |
| 28 | John Grantham | 22 | Lodger | New Worker | Arizona |
| 29 | Joseph V Williams | 28 | Head | Office Clerk | English |
| 30 | Lucille Williams | 30 | Wife | Personal Supervisor | Colorado |
| 31 | Peter O Bowman | 30 | Head | Attendant | Oregon |
| 32 | Gene L Bowman | 24 | Wife | — | California |
| 33 | Dale Deane Bowman | 2 | Daughter | — | Oregon |
| 34 | Dale Kathryn Bowman | 28 | Sister-in-law | Saleslady | California |
| 35 | Lucille F Clawson | 41 | Head | Tabulator | California |
| 36 | Wilhelmina Wicklund | 81 | Aunt | — | Sweden |
| 37 | Abe H Simons | 33 | Head | Accountant | England |
| 38 | Marjorie R Simons | 25 | Wife | — | California |
| 39 | Yvonne L Simons | 2 | Daughter | — | California |
| 40 | Lester L Furtado | 31 | Head | Electrician | California |
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)