RO
Robert Olson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Plymouth, Massachusetts
Our Model Tree links this Robert Olson across the 1930 and 1940 US Censuses in Plymouth, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 10-person household.
Age 4
b. ~1926
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Plymouth, Massachusetts |
| Surname | Olson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Additional Details | |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Brockton City |
| 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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Paul Olson | Son | — | 4 | ~1926 |
| Carl Olson | Head | — | 52 | ~1878 |
| Emma Olson | Daughter | — | 14 | ~1916 |
| Anna Olson | Spouse | — | 44 | ~1886 |
| Celia Olson | Daughter | — | 16 | ~1914 |
| Carl Olson | Son | — | 13 | ~1917 |
| Harold Olson | Son | — | 17 | ~1913 |
| Anna Olson | Daughter | — | 11 | ~1919 |
| Robert Olson | Son | — | 4 | ~1926 |
| Claire Olson | Daughter | — | 7 | ~1923 |
Census Appearances
1930
Plymouth, Massachusetts
Son, age 4
Plymouth, Massachusetts · implied b. ~1926 — 10 household members
| Surname | Olson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Plymouth-County, Massachusetts
Son, age 15
Plymouth-County, Massachusetts · implied b. ~1925 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olsen |
| Given Name | Roy E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Brockton City |
| 1935 Residence (County) | Plymouth |
| Occupation | Delivery boy |
| Industry | Newspaper Route |
| Class of Worker | OA |
| Hours Worked | 10 |
| Income (1939) | 20 |
| Highest Grade | S-8 |
| 1935 Residence | Same house |
| 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 Robert Olson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Olson
Son · 1930 · age 4 · b. ~1926 · Massachusetts
★ You are viewing this record
Sibling
Claire Olson
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Olson
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Olson
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carl Olson
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Olson
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Emma Olson
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Celia Olson
Sibling · 1930 · age 16
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
1930 US Federal Census — Plymouth, Massachusetts
Open full size
1930 US Federal Census — Plymouth, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel939:0305)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Roy Russell | 19 | Son | Gas Station Attdt | Massachusetts |
| 2 | Dorothy Russell | 4 | Daughter | — | Massachusetts |
| 3 | Ingrid Johnson | 42 | Lodger | — | Sweden |
| 4 | Henning Peterson | 45 | Head | Cutter | Sweden |
| 5 | Vera Peterson | 45 | Wife | Cook | Sweden |
| 6 | Alice Peterson | 12 | Daughter | — | Massachusetts |
| 7 | Adolph Johnson | 70 | Head | — | Sweden |
| 8 | Arcant Amorigian | 32 | Head | Laster | Turkey |
| 9 | Razza Amorigian | 26 | Wife | — | Turkey |
| 10 | Edna Amorigian | 7 | Daughter | — | Massachusetts |
| 11 | Albert Amorigian | 5 | Son | — | Massachusetts |
| 12 | Evelyn Amorigian | 4 | Daughter | — | Massachusetts |
| 13 | Edward Amorigian | 1 | Son | — | Massachusetts |
| 14 | John E. Gould | 56 | Head | Cutter | Massachusetts |
| 15 | Lillian M. Gould | 59 | Wife | — | Massachusetts |
| 16 | Charles W. Gould | 88 | Father | — | Massachusetts |
| 17 | Arthur Field | 46 | Head | Sole Sorter | Massachusetts |
| 18 | Mabel Field | 47 | Wife | — | Canada-English |
| 19 | Robert Field | 21 | Son | Musician | Massachusetts |
| 20 | George Ford | 33 | Head | Salesman | England |
| 21 | Gladys Ford | 30 | Wife | — | Rhode Island |
| 22 | Barbara Ford | 6 | Daughter | — | Massachusetts |
| 23 | Molly Ford | 3 | Daughter | — | Massachusetts |
| 24 | Wesley Drouds | 33 | Head | Salesman | Massachusetts |
| 25 | Edith Drouds | 30 | Wife | Bookkeeper | Massachusetts |
| 26 | Elizabeth Johnson | 50 | Head | Merchant | Sweden |
| 27 | Ella Johnson | 39 | Wife | — | Massachusetts |
| 28 | Alfred Coomer | 52 | Head | Stitcher | Massachusetts |
| 29 | Cora Coomer | 53 | Wife | Stitcher | Massachusetts |
| 30 | Clarence Coomer | 20 | Son | — | Massachusetts |
| 31 | Irving Coomer | 20 | Son | — | Massachusetts |
| 32 | Mark Stenberg | 44 | Head | Asst. Manager | Massachusetts |
| 33 | Delia Stenberg | 42 | Sister | Stitcher | Massachusetts |
| 34 | Augusta Stenberg | 83 | Mother | — | Sweden |
| 35 | Carl Anderson | 65 | Head | Laborer | Sweden |
| 36 | Annie Anderson | 64 | Wife | — | Sweden |
| 37 | Irene Dahl | 13 | Granddaughter | — | Massachusetts |
| 38 | Gunnar Johnson | 28 | Head | Machinist | Sweden |
| 39 | Agatha Johnson | 26 | Wife | — | Sweden |
| 40 | Ruth Johnson | 1 | Daughter | — | Massachusetts |
| 41 | Carl V. Olson | 52 | Head | Retailer | Sweden |
| 42 | Anna Olson | 44 | Wife | — | Sweden |
| 43 | Harold Olson | 17 | Son | — | Massachusetts |
| 44 | Celia Olson | 16 | Daughter | — | Massachusetts |
| 45 | Emma Olson | 14 | Daughter | — | Massachusetts |
| 46 | Carl Olson | 13 | Son | — | Massachusetts |
| 47 | Anna Olson | 11 | Daughter | — | Massachusetts |
| 48 | Paul Olson | 4 | Son | — | Massachusetts |
| 49 | Robert Olson THIS PERSON | 4 | Son | — | Massachusetts |
| 50 | Claire Olson | 7 | Daughter | — | Massachusetts |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)