NP
Nels Peterson — 1920 US Census Record
Model Tree available1920 United States Federal Census · Alameda, California
Our Model Tree links this Nels Peterson across the 1900, 1910 and 1920 US Censuses in Alameda, California (XGBoost, ~Confirmed), with identified parents Joanna & Johannah — first a son (b.~1891), then head of a 3-person household.
Age 29
b. ~1891
Male
Son
Born: California
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Alameda, California |
| Surname | Peterson |
| Given Name | Nels |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Additional Details | |
| Occupation | Proprietor |
| Industry | Yellow Co. |
| Class of Worker | Em |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Proprietor |
| Township / Ward | Berkeley City |
| Est. Birth Year | ~1891 |
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.
3 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Nels | Age | Birth yr |
|---|---|---|---|---|
| Leander Peterson | Son | — | 32 | ~1888 |
| Johannah Peterson | Head | — | 63 | ~1857 |
| Nels Peterson | Son | — | 29 | ~1891 |
Census Appearances
1900
Alameda, California
Son, age 11
Alameda, California · implied b. ~1889 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Nels |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | California |
| Birth Month | Jan |
| Birth Year | 1889 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | At School |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1910
Alameda, California
Son, age 20
Alameda, California · implied b. ~1890 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Nels |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Refiner |
| Industry | Refinery of tallow |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1920
Alameda, California
Son, age 29
Alameda, California · implied b. ~1891 — 3 household members
| Surname | Peterson |
| Given Name | Nels |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Proprietor |
| Industry | Yellow Co. |
| Class of Worker | Em |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 Nels Peterson across 3 US Census years (1900, 1910 and 1920) in Alameda, California, using XGBoost record linkage. Identified parents: mother Joanna Peterson (~0.92 confidence) and mother Johannah Peterson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Joanna Peterson
b. ~1857
Source mother
● Household
· direct · ~0.92
Mother
Johannah Peterson
b. ~1857
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Nels Peterson
Son · 1920 · age 29 · b. ~1891 · California
★ You are viewing this record
Sibling
Leander Peterson
Sibling · 1920 · age 32
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 — Alameda, California
Open full size
1920 US Federal Census — Alameda, California
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu093unit:0208)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph Graves | 49 | Head | Fireman | California |
| 2 | Marjorie Graves | 34 | wife | None | California |
| 3 | Lawrence Graves | 10 | son | None | California |
| 4 | Johannah Peterson | 63 | Head | None | Sweden |
| 5 | Leander Peterson | 32 | son | Bookkeeper | California |
| 6 | Nels Peterson THIS PERSON | 29 | son | Proprietor | California |
| 7 | Adelia Haden Patty | 77 | Head | None | Missouri |
| 8 | Madeline Jankowsky | 42 | Head | Stenographer | Prague Bohemia |
| 9 | Rafael Gerard | 60 | Companion | Housework | Switzerland |
| 10 | Otto Holm | 41 | Head | Baker | Denmark |
| 11 | Margaret Holm | 44 | wife | Saleslady | Denmark |
| 12 | Francis Holm | 26 | son | Laborer | Denmark |
| 13 | Frank A. Kiefer | 53 | Head | Chauffeur | Indiana |
| 14 | Magdalene Kiefer | 39 | wife | Saleslady | Roumania |
| 15 | Madine Kiefer | 16 | daughter | None | California |
| 16 | Mae Kiefer | 14 | daughter | None | California |
| 17 | Theresa Hogan | 30 | Head | Stenographer | Nevada |
| 18 | Aileen Hogan | 26 | sister | Bookkeeper | Nevada |
| 19 | Gladys Hogan | 23 | sister | Stenographer | Nevada |
| 20 | Paul Hogan | 21 | brother | Machinist | Nevada |
| 21 | Alice Hogan | 16 | sister | Stock Girl | Nevada |
| 22 | Joseph Mcettigan | 34 | Head | Gardener | Ireland |
| 23 | Easson Mcettigan | 28 | wife | None | Nebraska |
| 24 | Susan Mcettigan | 30 | sister | Dressmaker | Ireland |
| 25 | Harry N. Cooper | 43 | Head | Chemist | California |
| 26 | Gabriel Cooper | 29 | wife | None | California |
| 27 | M. Lothrop | 55 | Roomer | Retired | Massachusetts |
| 28 | Hugh Darling | 28 | Head | Printer | Texas |
| 29 | Ethel Darling | 25 | wife | None | California |
| 30 | Fred J. Meinheit | 30 | Head | Electrician | California |
| 31 | Elsie Meinheit | 29 | wife | Saleslady | California |
| 32 | Harold S. Meinheit | 8 | son | None | California |
| 33 | John Ryan | 50 | Servant | Gardener | Ireland |
| 34 | Ethel Cabrell | 24 | Servant | Waitress | California |
| 35 | Elizabeth Quinlivan | 70 | Servant | Housekeeper | Ireland |
| 36 | Sister M. Monica Fenton | 38 | Head | Teacher | California |
| 37 | Sister M. Rosalie Conway | 57 | Boarder | Teacher | Missouri |
| 38 | Sister M. Martina O'Reilly | 33 | Boarder | Teacher | California |
| 39 | Sister M. Peter Ryan | 26 | Boarder | Teacher | Ireland |
| 40 | Sister M. Imelda Dixon | 34 | Boarder | Teacher | California |
| 41 | Sister M. Ita Berman | 24 | Boarder | Teacher | Ireland |
| 42 | Sister M. Dolores Manning | 33 | Boarder | Religious | Michigan |
| 43 | Sister M. Agnes Kearney | 63 | Boarder | Religious | California |
| 44 | Sister M. Hemming | 49 | Boarder | Teacher | Ireland |
| 45 | Sister M. Philomena Conway | 55 | Boarder | Housekeeper | Massachusetts |
| 46 | Sister Letitia Daly | 62 | Boarder | Teacher | England |
| 47 | Sister M. Berchmans Cozens | 71 | Boarder | Teacher | Ireland |
| 48 | Sister M. Aileen Mclaughlin | 57 | Boarder | Teacher | Massachusetts |
| 49 | Sister M. Antonia Lonergan | 43 | Boarder | Teacher | California |
| 50 | Sister M. O. Xavier Rollins | 42 | Boarder | Teacher | Ireland |
Pedigree Summary
Nels + 1 sibling
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)