JL
John Larsen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Ocean-County, New Jersey
Our Model Tree links this John Larsen across the 1930 and 1940 US Censuses in Ocean-County, New Jersey (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 9-person household.
Age 12
b. ~1928
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ocean-County, New Jersey |
| Surname | Larsen |
| Given Name | John Albert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Seaside Park borough |
| 1935 Residence (County) | Ocean |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Seaside Park Borough |
| Est. Birth Year | ~1928 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Alfred Larsen | Son | — | 11 | ~1929 |
| Eric Larsen | Son | — | 10 | ~1930 |
| Eleanor Larsen | Daughter | — | 7 | ~1933 |
| June Larsen | Daughter | — | 3 | ~1937 |
| Robert Larsen | Son | — | 8 | ~1932 |
| Nancy Larsen | Daughter | — | 5 | ~1935 |
| John Larsen | Son | — | 12 | ~1928 |
| Clara Larsen | Spouse | — | 38 | ~1902 |
| John Larsen | Head | — | 46 | ~1894 |
Census Appearances
1930
Ocean, New …
Son, age 2
Ocean, New Jersey · implied b. ~1928 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larsen |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Norway |
| Mother's Birthplace | Germany |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Ocean-County, New …
Son, age 12
Ocean-County, New Jersey · implied b. ~1928 — 9 household members
| Surname | Larsen |
| Given Name | John Albert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Seaside Park borough |
| 1935 Residence (County) | Ocean |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 Larsen across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Larsen
Son · 1940 · age 12 · b. ~1928 · New Jersey
★ You are viewing this record
Sibling
June Larsen
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eric Larsen
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanor Larsen
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alfred Larsen
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nancy Larsen
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Larsen
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Ocean-County, New Jersey
Open full size
1940 US Federal Census — Ocean-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02374-00980)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John L. Larsen | 46 | Head | Captain | Norway |
| 2 | Clara L. Larsen | 38 | Wife | — | Germany |
| 3 | John Albert Larsen THIS PERSON | 12 | Son | — | New Jersey |
| 4 | Alfred Olaf Larsen | 11 | Son | — | New Jersey |
| 5 | Eric Paul Larsen | 10 | Son | — | New Jersey |
| 6 | Robert Bruce Larsen | 8 | Son | — | New Jersey |
| 7 | Eleanor Marion Larsen | 7 | Daughter | — | New Jersey |
| 8 | Nancy May Larsen | 5 | Daughter | — | New Jersey |
| 9 | June Clara Larsen | 3 | Daughter | — | New Jersey |
| 10 | Ezra R. Wyckoff | 40 | Head | Postmaster | New York |
| 11 | Clifford R. Brown | 26 | Head | Policeman | New Jersey |
| 12 | Estella W. H. Brown | 25 | Wife | — | New Jersey |
| 13 | Frank V. Brown | 5 | Son | — | New Jersey |
| 14 | Nick Barulic | 45 | Head | Partner | Yugoslavia |
| 15 | Mary Barulic | 39 | Wife | — | Yugoslavia |
| 16 | George Barulic | 17 | Son | — | New Jersey |
| 17 | John Barulic | 16 | Son | — | New Jersey |
| 18 | Nicholas Barulic | 14 | Son | — | New Jersey |
| 19 | Henry Edgren | 62 | Head | Painter | England |
| 20 | Bertha Edgren | 57 | Wife | — | Iowa |
| 21 | Roy J. Wallace | 46 | Head | Houseman | England |
| 22 | Helen A. Wallace | 41 | Wife | — | Norway |
| 23 | Gladys O. Wernberg | 22 | Daughter | Mother'S Helper | New York |
| 24 | Mrs. Florence Farmer | 57 | Head | — | New Jersey |
| 25 | John Henry Burdge | 65 | Head | Laborer | New Jersey |
| 26 | Sarah L. Burdge | 60 | Wife | — | New Jersey |
| 27 | John Pershing Burdge | 21 | Son | Laborer | New Jersey |
| 28 | Halfdan Johannessen | 29 | Head | Fisherman | Norway |
| 29 | Emma B. Johannessen | 19 | Wife | — | New Jersey |
| 30 | Mary R. Bagley | 55 | Head | — | New Jersey |
| 31 | Mildred N. Bagley | 37 | Daughter | Saleswoman | New Jersey |
| 32 | Amy J. Pardall | 64 | Daughter | — | New Jersey |
| 33 | Thomas W. Reed | 73 | Head | — | New Jersey |
| 34 | Samuel Reed | 37 | Head | Laborer | New Jersey |
| 35 | Margaret S. Jackson | 40 | Head | Housework | Pennsylvania |
| 36 | Elsie Mae Jackson | 14 | Daughter | — | New Jersey |
| 37 | George R. Jackson | 13 | Son | — | New Jersey |
| 38 | Mary C. Dunn | 12 | Daughter | — | New Jersey |
| 39 | Welva A. Douglas | 30 | Head | Waitress | New Jersey |
| 40 | Gloria M. Douglas | 5 | Daughter | — | New Jersey |
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)