WO
William Olson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Plymouth, Massachusetts
Our Model Tree links this William Olson across the 1920, 1930 and 1940 US Censuses in Plymouth, Massachusetts (XGBoost, ~Confirmed), with identified parents Fred & Bessie — first a son (b.~1914), then head of a 7-person household.
Age 16
b. ~1914
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Plymouth, Massachusetts |
| Surname | Olson |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | England |
| Mother's Birthplace | Lithuania |
| Additional Details | |
| Occupation | Laborer |
| Industry | Last Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Laborer |
| Township / Ward | Brockton City |
| Est. Birth Year | ~1914 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Fred Olson | Head | — | 42 | ~1888 |
| Florence Olson | Daughter | — | 15 | ~1915 |
| Agnes Olson | Daughter | — | 1 | ~1929 |
| Charles Olson | Son | — | 5 | ~1925 |
| Bessie Olson | Other | — | 38 | ~1892 |
| William Olson | Son | — | 16 | ~1914 |
| Charles Ratis | Other | — | 58 | ~1872 |
Census Appearances
1920
Plymouth, Massachusetts
Son, age 6
Plymouth, Massachusetts · implied b. ~1914 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olsen |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | England |
| Mother's Birthplace | Lithuania |
| Can Read | Yes |
| Speaks English | Yes |
| Mother Tongue | Lithuanian |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Plymouth, Massachusetts
Son, age 16
Plymouth, Massachusetts · implied b. ~1914 — 7 household members
| Surname | Olson |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | England |
| Mother's Birthplace | Lithuania |
| Occupation | Laborer |
| Industry | Last Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Plymouth-County, Massachusetts
Son, age 26
Plymouth-County, Massachusetts · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olsen |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Brockton City |
| 1935 Residence (County) | Plymouth |
| Occupation | Cutter |
| Industry | Shoe Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 600 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 William Olson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Fred Olson (~0.92 confidence) and mother Bessie Olsen (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Fred Olson
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Bessie Olsen
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Olson
Son · 1930 · age 16 · b. ~1914 · Massachusetts
★ You are viewing this record
Sibling
Florence Olson
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agnes Olson
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Olson
Sibling · 1930 · age 5
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:massachusettscensus00reel939:0631)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Sophia Urnikas | 42 | Wife-H | None | Lithuania |
| 52 | Joseph Sheehan | 31 | Head | Shoe Worker | Massachusetts |
| 53 | Elvira E Sheehan | 21 | Wife-H | None | New Jersey |
| 54 | Lorraine T Sheehan | 5 | Daughter | None | Massachusetts |
| 55 | Christina Grubauskas | 45 | Head-H | Laborer | Poland |
| 56 | John Grubauskas | 14 | Son | None | Massachusetts |
| 57 | Mary Grubauskas | 13 | Daughter | None | Massachusetts |
| 58 | Theodore Bennet | 32 | Head | Painter | Germany |
| 59 | Wilhelmina Bennet | 29 | Wife-H | None | Germany |
| 60 | William Bennet | 7 | Son | None | Germany |
| 61 | William Dargis | 55 | Head | Shoe Worker | Lithuania |
| 62 | Frances Dargis | 52 | Wife-H | None | Lithuania |
| 63 | Stanley Dargis | 23 | Son | Shoe Worker | Lithuania |
| 64 | Alfonse Dargis | 16 | Son | Shoe Worker | Massachusetts |
| 65 | Sophia Dargis | 14 | Daughter | None | Massachusetts |
| 66 | Lillian Dargis | 12 | Daughter | None | Massachusetts |
| 67 | Anthony Starian | 32 | Roomer | Shoe Worker | Lithuania |
| 68 | Fred Olson | 42 | Head | Shoe Worker | England |
| 69 | Bessie Olson | 38 | Wife-H | None | Lithuania |
| 70 | William Olson THIS PERSON | 16 | Son | Laborer | Massachusetts |
| 71 | Charles Olson | 5 | Son | None | Massachusetts |
| 72 | Florence Olson | 15 | Daughter | None | Massachusetts |
| 73 | Agnes Olson | 1 | Daughter | None | Massachusetts |
| 74 | Charles Ratis | 58 | Roomer | Laborer | Lithuania |
| 75 | Sylvester Swickla | 42 | Head | Proprietor | Poland |
| 76 | Konstancya Swickla | 35 | Wife-H | None | Lithuania |
| 77 | Julia Swickla | 12 | Daughter | None | Massachusetts |
| 78 | Sylvester Jr Swickla | 7 | Son | None | Massachusetts |
| 79 | Edmund Swickla | 3 | Son | None | Massachusetts |
| 80 | Alfonse Chmielewski | 55 | Head | Shoe Worker | Lithuania |
| 81 | Rosalia Chmielewski | 50 | Wife-H | None | Lithuania |
| 82 | Wladyslaw Chmielewski | 12 | Son | None | Massachusetts |
| 83 | Michael Salewicz | 40 | Head | Shoe Worker | Lithuania |
| 84 | Julia Salewicz | 35 | Wife-H | None | Lithuania |
| 85 | Julia Salewicz | 12 | Daughter | None | Massachusetts |
| 86 | Virginia Salewicz | 9 | Daughter | None | Massachusetts |
| 87 | Vitolt Salewicz | 9 | Son | None | Massachusetts |
| 88 | Kostanty Krunonis | 36 | Roomer | Shoe Worker | Lithuania |
| 89 | John Sidaras | 45 | Head | Proprietor | Lithuania |
| 90 | Antonina Sidaras | 36 | Wife-H | None | Lithuania |
| 91 | Hilda Sidaras | 8 | Daughter | None | Massachusetts |
| 92 | Edmund Sidaras | 3 | Son | None | Massachusetts |
| 93 | Edward J Mahoney | 27 | Head | Agent | Massachusetts |
| 94 | Rose A Mahoney | 25 | Wife-H | None | Massachusetts |
| 95 | Edward J Jr Mahoney | 1 | Son | None | Massachusetts |
| 96 | Francis J Connel | 29 | Head | Salesman | Massachusetts |
| 97 | Mary J Connel | 24 | Wife-H | None | Massachusetts |
| 98 | Edward J Connel | 8 | Son | None | Massachusetts |
| 99 | Ruth M Connel | 5 | Daughter | None | Massachusetts |
| 100 | Ludwig Yundzilla | 54 | Head | Shoe Worker | Lithuania |
Pedigree Summary
William + 3 siblings
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 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)