EP
Elmer Peterson — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Worcester, Massachusetts
Our Model Tree links this Elmer Peterson across the 1910 and 1920 US Censuses in Worcester, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1903), then head of a 8-person household.
Age 17
b. ~1903
Male
Son
Born: Massachusetts
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Worcester, Massachusetts |
| Surname | Peterson |
| Given Name | Elmer |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Additional Details | |
| Occupation | Clerk |
| Industry | Grocery Store |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Clerk |
| Township / Ward | Worcester City |
| Est. Birth Year | ~1903 |
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.
8 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Elmer | Age | Birth yr |
|---|---|---|---|---|
| Lawrence Peterson | Son | — | 14 | ~1906 |
| Elmer Peterson | Son | — | 17 | ~1903 |
| Claus Peterson | Son | — | 29 | ~1891 |
| Ida Peterson | Spouse | — | 52 | ~1868 |
| Rudolph Peterson | Son | — | 27 | ~1893 |
| Ruth Peterson | Daughter | — | 23 | ~1897 |
| Henry Peterson | Son | — | 19 | ~1901 |
| Isaac Peterson | Head | — | 55 | ~1865 |
Census Appearances
1910
Worcester, Massachusetts
Son, age 7
Worcester, Massachusetts · implied b. ~1903 — 6 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 | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Worcester, Massachusetts
Son, age 17
Worcester, Massachusetts · implied b. ~1903 — 8 household members
| Surname | Peterson |
| Given Name | Elmer |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Clerk |
| Industry | Grocery Store |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 (1910 and 1920) in Worcester, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
Elmer Peterson
Son · 1920 · age 17 · b. ~1903 · Massachusetts
★ You are viewing this record
Sibling
Ruth Peterson
Sibling · 1920 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Claus Peterson
Sibling · 1920 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Peterson
Sibling · 1920 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henry Peterson
Sibling · 1920 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rudolph Peterson
Sibling · 1920 · age 27
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
1920 US Federal Census — Worcester, Massachusetts
Open full size
1920 US Federal Census — Worcester, Massachusetts
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu750unit:0803)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | August Taipale | 41 | Head | Laborer | Finland |
| 52 | Sanni Taipale | 44 | Wife | — | Finland |
| 53 | John Bjorkman | 51 | Head | Bookkeeper | Sweden |
| 54 | Esther Bjorkman | 47 | Wife | — | Sweden |
| 55 | Collins Bjorkman | 17 | Daughter | — | Massachusetts |
| 56 | Paul E Bjorkman | 14 | Son | — | Massachusetts |
| 57 | Isaac Peterson | 55 | Head | Painter | Sweden |
| 58 | Ida Peterson | 52 | Wife | — | Sweden |
| 59 | Claus Peterson | 29 | Son | Machinist | Massachusetts |
| 60 | Rudolph Peterson | 27 | Son | Leather Cutter | Massachusetts |
| 61 | Ruth Peterson | 23 | Daughter | Operator | Massachusetts |
| 62 | Henry Peterson | 19 | Son | Clerk | Massachusetts |
| 63 | Elmer Peterson THIS PERSON | 17 | Son | Clerk | Massachusetts |
| 64 | Lawrence Peterson | 14 | Son | — | Massachusetts |
| 65 | John Isaacson | 51 | Head | Laborer | Sweden |
| 66 | Josephine Isaacson | 54 | Wife | — | Sweden |
| 67 | Eric Isaacson | 25 | Son | Laborer | Sweden |
| 68 | Astrid Isaacson | 23 | Daughter | — | Massachusetts |
| 69 | Elsa Isaacson | 25 | Daughter | — | Massachusetts |
| 70 | Ivar Isaacson | 18 | Son | — | Massachusetts |
| 71 | Iniz Isaacson | 14 | Daughter | — | Massachusetts |
| 72 | Henry Isaacson | 11 | Son | — | Massachusetts |
| 73 | John V Wellen | 44 | Head | Motorman | Massachusetts |
| 74 | Annie Wellen | 45 | Wife | — | Sweden |
| 75 | Herbert Wellen | 24 | Son | Mail Clerk | Massachusetts |
| 76 | Ethel Wellen | 22 | Daughter | Electrician | Massachusetts |
| 77 | Edith Wellen | 21 | Daughter | — | Massachusetts |
| 78 | Clarence Wellen | 20 | Son | Draftsman | Massachusetts |
| 79 | Gustave Erickson | 31 | Head | Carpenter | Sweden |
| 80 | Hulda Erickson | 32 | Wife | — | Sweden |
| 81 | Frank S Erickson | 1 | Son | — | Massachusetts |
| 82 | Selma Bjorkman | 35 | Head | Clerk | Massachusetts |
| 83 | Ellen A Bjorkman | 27 | Sister | Stenographer | Massachusetts |
| 84 | Paul Prouen | 39 | Head | Laborer | Finland |
| 85 | Martha Prouen | 36 | Wife | — | Finland |
| 86 | Kerttu Prouen | 10 | Daughter | — | Finland |
| 87 | Aregard Prouen | 29 | Wife | — | Finland |
| 88 | Toini Prouen | 2 | Son | — | Montana |
| 89 | Frank M Ruosteto | 37 | Head | Helper | Finland |
| 90 | Elma Ruosteto | 35 | Wife | — | Finland |
| 91 | Martin Ruosteto | 1 | Son | — | Massachusetts |
| 92 | Alex Lehto | 35 | Boarder | Laborer | Finland |
| 93 | Herman Aho | 37 | Head | Wire Worker | Finland |
| 94 | Selma Aho | 32 | Wife | — | Finland |
| 95 | Herman Aho | 1 | Son | — | Massachusetts |
| 96 | Milo Koma | 29 | Head | Laborer | Finland |
| 97 | Ina Koma | 26 | Wife | — | Finland |
| 98 | William Nelson | 26 | Head | Laborer | Finland |
| 99 | Lempi Nelson | 26 | Wife | — | Finland |
| 100 | Reina Nelson | 1 | Son | — | Massachusetts |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)