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Oscar Anderson — 1920 US Census Record
Model Tree available1920 United States Federal Census · Worcester, Massachusetts
Our Model Tree links this Oscar Anderson across the 1900, 1910 and 1920 US Censuses in Worcester, Massachusetts (XGBoost, ~Confirmed), with identified parents Martin & Mary — first a son (b.~1890), then head of a 10-person household.
Age 30
b. ~1890
Male
Son
Born: Massachusetts
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Worcester, Massachusetts |
| Surname | Anderson |
| Given Name | Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Additional Details | |
| Occupation | Iron worker |
| Industry | Foundry |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Iron Worker |
| Township / Ward | Worcester |
| Est. Birth Year | ~1890 |
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.
10 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Oscar | Age | Birth yr |
|---|---|---|---|---|
| Martin Anderson | Head | — | 54 | ~1866 |
| William Ulstrom | Other | — | 34 | ~1886 |
| Nils Ulstrom | Other | — | 72 | ~1848 |
| Sarah Anderson | Other | — | 26 | ~1894 |
| Harry Pechuin | Other | — | 16 | ~1904 |
| Oscar Anderson | Son | — | 30 | ~1890 |
| George Anderson | Son | — | 28 | ~1892 |
| William Anderson | Son | — | 27 | ~1893 |
| John Anderson | Son | — | 24 | ~1896 |
| Mary Anderson | Spouse | — | 42 | ~1878 |
Census Appearances
1900
Worcester, Massachusetts
Son, age 11
Worcester, Massachusetts · implied b. ~1889 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Oscar C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Birth Month | Mar |
| 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 | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1910
Worcester, Massachusetts
Son, age 20
Worcester, Massachusetts · implied b. ~1890 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Laborer |
| Industry | Outside work |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Worcester, Massachusetts
Son, age 30
Worcester, Massachusetts · implied b. ~1890 — 10 household members
| Surname | Anderson |
| Given Name | Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Iron worker |
| Industry | Foundry |
| 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 Oscar Anderson across 3 US Census years (1900, 1910 and 1920) in Worcester, Massachusetts, using XGBoost record linkage. Identified parents: father Martin Anderson (~0.92 confidence) and mother Mary Anderson (~0.92 confidence) and mother Mary Anderson (~0.92 confidence) and mother Mary Anderson (~0.60 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.84
Father
Martin Anderson
b. ~1866
Source father
● Household
· direct · ~0.92
Mother
Mary Anderson
b. ~1870
Source mother
● Household
· direct · ~0.92
Mother
Mary Anderson
b. ~1871
Source mother
● Household
· direct · ~0.92
Mother
Mary Anderson
b. ~1878
Source mother
● Household
· direct · ~0.6
This person
Anchor record
Oscar Anderson
Son · 1920 · age 30 · b. ~1890 · Massachusetts
★ You are viewing this record
Sibling
William Anderson
Sibling · 1920 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Anderson
Sibling · 1920 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Anderson
Sibling · 1920 · age 28
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:1920:14thcensusofpopu752unit:0795)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Charles Edlen | 48 | Head | Blacksmith | Sweden |
| 52 | Ida Edlen | 44 | Wife | — | Sweden |
| 53 | Alfhild Edlen | 17 | Daughter | Clerk | Massachusetts |
| 54 | Ellen Edlen | 15 | Daughter | — | Massachusetts |
| 55 | Theresa Edlen | 13 | Daughter | — | Massachusetts |
| 56 | Eva Edlen | 11 | Daughter | — | Massachusetts |
| 57 | Inez Edlen | 7 | Daughter | — | Massachusetts |
| 58 | Milton Edlen | 4 | Son | — | Massachusetts |
| 59 | John Stone | 44 | Head | Wire Drawer | Sweden |
| 60 | Hannah Stone | 37 | Wife | — | Sweden |
| 61 | Edward J. Stone | 13 | Son | — | Massachusetts |
| 62 | Hazel V. Stone | 11 | Daughter | — | Massachusetts |
| 63 | Clifford J. Stone | 9 | Son | — | Massachusetts |
| 64 | Edith V. Stone | 7 | Daughter | — | Massachusetts |
| 65 | Clara V. Stone | 1 | Daughter | — | Massachusetts |
| 66 | John G. Sohn | 26 | Cousin | Packer | Massachusetts |
| 67 | Gustaf Sjoberg | 54 | Head | Wire Drawer | Sweden |
| 68 | Christine Sjoberg | 52 | Wife | — | Sweden |
| 69 | Axel Sjoberg | 31 | Son | Trucking | Massachusetts |
| 70 | Helen Sjoberg | 28 | Daughter | Bookkeeper | Massachusetts |
| 71 | Martin Anderson | 54 | Head | Steam Fitter | Sweden |
| 72 | Mary Anderson | 42 | Wife | — | Sweden |
| 73 | Oscar Anderson THIS PERSON | 30 | Son | Iron Worker | Massachusetts |
| 74 | George Anderson | 28 | Son | Wire Worker | Massachusetts |
| 75 | William G. Anderson | 27 | Son | — | Massachusetts |
| 76 | John E. Anderson | 24 | Son | Operator | Massachusetts |
| 77 | Sarah Anderson | 26 | Daughter-in-law | — | Massachusetts |
| 78 | William G. Ulstrom | 34 | Brother-in-law | Clerk | New York |
| 79 | Nils O. Ulstrom | 72 | Father-in-law | — | Sweden |
| 80 | Harry Pechuin | 16 | Cousin | Laborer | New York |
| 81 | Albert L. Allen | 36 | Head | Gardner | Massachusetts |
| 82 | Mabel Allen | 34 | Wife | — | Massachusetts |
| 83 | Myrtle L. Allen | 12 | Daughter | — | Massachusetts |
| 84 | Russell A. Allen | 8 | Son | — | Massachusetts |
| 85 | Franklin J. Allen | 5 | Son | — | Massachusetts |
| 86 | Thelma Allen | 3 | Daughter | — | Massachusetts |
| 87 | Eli Provencal | 33 | Head | Fireman | Massachusetts |
| 88 | Lilian Provencal | 36 | Wife | — | New York |
| 89 | Norman Provencal | 10 | Son | — | Massachusetts |
| 90 | Pauline Provencal | 7 | Daughter | — | Massachusetts |
| 91 | Andrew Provencal | 22 | Brother | Wire Worker | Massachusetts |
| 92 | Henry E. Fisher | 41 | Head | — | New Hampshire |
| 93 | Cassandra Harriman | 66 | Housekeeper | Housekeeper | Virginia |
| 94 | Harry Ball | 55 | Head | Superintendent | England |
| 95 | Althea Ball | 50 | Wife | — | Connecticut |
| 96 | Edith Ball | 26 | Daughter | Teacher | Connecticut |
| 97 | Reginald H. Ball | 20 | Son | Navy | Connecticut |
| 98 | Merle Ball | 14 | Daughter | — | Connecticut |
| 99 | George A. Meyers | 38 | Head | Dentist | Maine |
| 100 | Elizabeth S. Meyers | 42 | Wife | — | Massachusetts |
Pedigree Summary
Oscar + 3 siblings
Gen 1 · 4 parents
~0.84
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)