JL
John Larsen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marquette-County, Michigan
Our Model Tree links this John Larsen across the 1930 and 1940 US Censuses in Marquette-County, Michigan (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 6-person household.
Age 14
b. ~1926
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marquette-County, Michigan |
| Surname | Larsen |
| Given Name | John W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Palmer |
| 1935 Residence (County) | Marquette |
| Additional Details | |
| Industry | 0 |
| Highest Grade | Yes 8 |
| 1935 Residence | Same house |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Palmer |
| Est. Birth Year | ~1926 |
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 |
|---|---|---|---|---|
| John Larsen | Son | — | 14 | ~1926 |
| Virginia Larsen | Daughter | — | 1 | ~1939 |
| John Larsen | Head | — | 42 | ~1898 |
| Robert Larsen | Son | — | 9 | ~1931 |
| Sanna Larsen | Spouse | — | 40 | ~1900 |
| Eugene Larsen | Son | — | 20 | ~1920 |
Census Appearances
1930
Marquette, Michigan
Son, age 4
Marquette, Michigan · implied b. ~1926 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Marquette-County, Michigan
Son, age 14
Marquette-County, Michigan · implied b. ~1926 — 6 household members
| Surname | Larsen |
| Given Name | John W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Palmer |
| 1935 Residence (County) | Marquette |
| Industry | 0 |
| Highest Grade | Yes 8 |
| 1935 Residence | Same house |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 14 · b. ~1926 · Michigan
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Sibling
Eugene Larsen
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Larsen
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Larsen
Sibling · 1940 · age 1
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 — Marquette-County, Michigan
Open full size
1940 US Federal Census — Marquette-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01787-00559)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Margaret M. Ranta | 3 | daughter | — | Michigan |
| 42 | Patricia R. Ranta | 3 | daughter | — | Michigan |
| 43 | Emil E. Oksanen | 66 | Head | — | Finland |
| 44 | Herman Oksanen | 62 | Head | — | Finland |
| 45 | Sander Raisanen | 60 | Head | Miner | Finland |
| 46 | Charles F. Karsen | 37 | Head | Miner | Michigan |
| 47 | Matilda A. Karsen | 29 | Wife | — | Michigan |
| 48 | June E. Karsen | 10 | daughter | — | Michigan |
| 49 | Merrill E. Karsen | 9 | Son | — | Michigan |
| 50 | Harold M. Karsen | 5 | Son | — | Michigan |
| 51 | John H. Sr. Luhta | 46 | Head | Laborer | Finland |
| 52 | Impi M. Luhta | 45 | Wife | — | Michigan |
| 53 | Ruth E. Luhta | 17 | daughter | — | Michigan |
| 54 | Vivia M. Luhta | 16 | daughter | — | Michigan |
| 55 | Helen M. Luhta | 14 | daughter | — | Michigan |
| 56 | Gertrude E. Luhta | 13 | daughter | — | Michigan |
| 57 | Norma S. Luhta | 10 | daughter | — | Michigan |
| 58 | Irma J. Luhta | 7 | daughter | — | Michigan |
| 59 | John H. Jr. Luhta | 5 | Son | — | Michigan |
| 60 | Raymond H. Luhta | 4 | Son | — | Michigan |
| 61 | Israel Pykkonen | 76 | Father-in-law | — | Finland |
| 62 | John F. Larsen | 42 | Head | Foreman | Finland |
| 63 | Sanna K. Larsen | 40 | Wife | — | Finland |
| 64 | Eugene R. Larsen | 20 | Son | Truck Driver | Michigan |
| 65 | John W. Larsen THIS PERSON | 14 | Son | — | Michigan |
| 66 | Robert C. Larsen | 9 | Son | — | Michigan |
| 67 | Virginia M. Larsen | 1 | daughter | — | Michigan |
| 68 | William I. Korpi | 34 | Head | Miner | Michigan |
| 69 | Anna E. Korpi | 28 | Wife | — | Michigan |
| 70 | Carolyn M. Korpi | 8 | daughter | — | Michigan |
| 71 | Sharon K. Korpi | 1 | daughter | — | Michigan |
| 72 | Matt Nyman | 42 | Head | Miner | Massachusetts |
| 73 | Katherine M. Nyman | 35 | Wife | — | Michigan |
| 74 | Donald M. Nyman | 14 | Son | — | Michigan |
| 75 | Evelyn M. Nyman | 13 | daughter | — | Michigan |
| 76 | Clifford R. Nyman | 11 | Son | — | Michigan |
| 77 | Norman W. Nyman | 10 | Son | — | Michigan |
| 78 | Charles M. Nyman | 8 | Son | — | Michigan |
| 79 | Keith D. Nyman | 6 | Son | — | Michigan |
| 80 | Dale A. Nyman | 2 | Son | — | Michigan |
Related Census Records
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)