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Elmer Peterson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Louis-County, Minnesota
Our Model Tree links this Elmer Peterson across the 1930 and 1940 US Censuses in St.-Louis-County, Minnesota (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 9-person household.
Age 17
b. ~1923
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-County, Minnesota |
| Surname | Peterson |
| Given Name | Elmer H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Duluth City |
| Additional Details | |
| Highest Grade | Hs 2 |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Duluth City |
| Est. Birth Year | ~1923 |
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 Elmer | Age | Birth yr |
|---|---|---|---|---|
| Elmer Peterson | Son | — | 17 | ~1923 |
| Joyan Peterson | Son | — | 22 | ~1918 |
| Harman Peterson | Head | — | 44 | ~1896 |
| Sophie Peterson | Spouse | — | 42 | ~1898 |
| Ruth Peterson | Daughter | — | 11 | ~1929 |
| June Peterson | Daughter | — | 13 | ~1927 |
| Earl Peterson | Son | — | 20 | ~1920 |
| Clifford Peterson | Son | — | 9 | ~1931 |
| Ruby Peterson | Daughter | — | 16 | ~1924 |
Census Appearances
1930
St Louis, …
Son, age 7
St Louis, Minnesota · implied b. ~1923 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Elmer |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Iowa |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
St.-Louis-County, Minnesota
Son, age 17
St.-Louis-County, Minnesota · implied b. ~1923 — 9 household members
| Surname | Peterson |
| Given Name | Elmer H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Duluth City |
| Highest Grade | Hs 2 |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Elmer Peterson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Elmer Peterson
Son · 1940 · age 17 · b. ~1923 · Minnesota
★ You are viewing this record
Sibling
Ruby Peterson
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joyan Peterson
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clifford Peterson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Peterson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Earl Peterson
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
June Peterson
Sibling · 1940 · age 13
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 — St.-Louis-County, Minnesota
Open full size
1940 US Federal Census — St.-Louis-County, Minnesota
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01972-00229)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Paul W Mcrae | 5 | Son | — | Minnesota |
| 2 | Roy R Mcrae | 47 | Head | Truck Driver | Minnesota |
| 3 | Laverne T Mcrae | 40 | Wife | — | South Dakota |
| 4 | Roy Jr. R. Mcrae | 13 | Son | — | Minnesota |
| 5 | Joyce I Mcrae | 11 | Daughter | — | Minnesota |
| 6 | Orrin W Mcrae | 8 | Son | — | Minnesota |
| 7 | Violet A Fullbaum | 37 | Sister-in-law | Waitress | South Dakota |
| 8 | John M. Nelson | 63 | Head | Janitor | Sweden |
| 9 | Ellen K Nelson | 55 | Wife | — | Sweden |
| 10 | Gunnar K. Nelson | 24 | Son | Manager | Minnesota |
| 11 | Jean E Nelson | 21 | Daughter | Stenographer | Minnesota |
| 12 | John H Nelson | 14 | Son | — | Minnesota |
| 13 | Harman J Peterson | 44 | Head | Laborer | Minnesota |
| 14 | Sophie Peterson | 42 | Wife | — | Norway |
| 15 | Joyan W Peterson | 22 | Son | Rug Weaver | Minnesota |
| 16 | Earl M. Peterson | 20 | Son | Laborer | Minnesota |
| 17 | Elmer H Peterson THIS PERSON | 17 | Son | — | Minnesota |
| 18 | Ruby L Peterson | 16 | Daughter | — | Minnesota |
| 19 | June Peterson | 13 | Daughter | — | Minnesota |
| 20 | Ruth Peterson | 11 | Daughter | — | Minnesota |
| 21 | Clifford L Peterson | 9 | Son | — | Minnesota |
| 22 | Fred J Pflueger | 47 | Head | Carpenter | Minnesota |
| 23 | Olga Pflueger | 49 | Wife | — | Minnesota |
| 24 | Dorothy Pflueger | 19 | daughter | — | Minnesota |
| 25 | Lloyd Pflueger | 15 | Son | — | Minnesota |
| 26 | Andrew H Swanson | 60 | Head | Laborer | Minnesota |
| 27 | Anna Swanson | 59 | Wife | — | Minnesota |
| 28 | Ethel A Swanson | 22 | Daughter | — | Minnesota |
| 29 | Ruth V. Swanson | 15 | Daughter | — | Minnesota |
| 30 | John H Stewart | 44 | Head | Train Caller | Minnesota |
| 31 | Eva Stewart | 42 | Wife | — | Massachusetts |
| 32 | Eva Stewart | 17 | Daughter | — | Minnesota |
| 33 | John Jr. Stewart | 16 | Son | — | Minnesota |
| 34 | Alfred O Engan | 37 | Head | Stationary Engineer | North Dakota |
| 35 | Muriel O Engan | 21 | Wife | — | North Dakota |
| 36 | Gerald D Engan | 2 | Son | — | North Dakota |
| 37 | Marcadas Engan | 0 | Daughter | — | Minnesota |
| 38 | Ida R Mcelagnia | 46 | Head | Power Operator | Michigan |
| 39 | Ida J Lilvik | 73 | Mother | — | Finland |
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)