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Carl Olson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Carl Olson across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Carl & Carl — first a son (b.~1918), then head of a 3-person household.
Age 22
b. ~1918
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Olson |
| Given Name | Carl H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Class of Worker | S |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | C-3 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1918 |
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 1940 census.
| Name | Relation to head | Relative to Carl | Age | Birth yr |
|---|---|---|---|---|
| Carl Olson | Head | — | 54 | ~1886 |
| Carl Olson | Son | — | 22 | ~1918 |
| Anna Olson | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Norfolk, Massachusetts
Son, age 2
Norfolk, Massachusetts · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Carl A. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Finland |
| Mother Tongue | Swedish |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Son, age 12
Suffolk, Massachusetts · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olsen |
| Given Name | Carl A Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Finland |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 22
Suffolk-County, Massachusetts · implied b. ~1918 — 3 household members
| Surname | Olson |
| Given Name | Carl H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Class of Worker | S |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | C-3 |
| 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 Carl Olson across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father Carl Olson (~0.92 confidence) and father Carl Olsen (~0.92 confidence) and father Olof Olson (~0.92 confidence) and mother Alice Olson (~0.92 confidence) and mother Anna Olson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Carl Olson
b. ~1886
Source father
● Household
· direct · ~0.92
Father
Carl Olsen
b. ~1886
Source father
● Household
· direct · ~0.92
Father
Olof Olson
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Alice Olson
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Anna Olson
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Carl Olson
Son · 1940 · age 22 · b. ~1918 · Massachusetts
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01680-00845)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Alice E Moran | 41 | Wife | — | Massachusetts |
| 42 | Paul Moran | 10 | Son | — | Massachusetts |
| 43 | Carol Moran | 4 | Daughter | — | Massachusetts |
| 44 | John Moran | 1 | Son | — | Massachusetts |
| 45 | John A Johnson | 52 | Head | Mechanic | Sweden |
| 46 | Harry A Johnson | 57 | Wife | — | Sweden |
| 47 | Hildreth Johnson | 17 | Son | — | Massachusetts |
| 48 | John J Foley | 63 | Head | Engineer | Massachusetts |
| 49 | Katherine E Foley | 60 | Wife | — | Massachusetts |
| 50 | Bernard A Mcinnis | 36 | Head | Lubricator | Massachusetts |
| 51 | Mary E Mcinnis | 40 | Wife | — | Massachusetts |
| 52 | Bernard M Mcinnis | 5 | Son | — | Massachusetts |
| 53 | Glen S Woodill | 47 | Head | Shade Cutter | Massachusetts |
| 54 | Marcella Woodill | 53 | Wife | Shade Cutter | Massachusetts |
| 55 | Richard Harding | 47 | Head | Inspector | New York |
| 56 | Mabel Harding | 52 | Wife | — | Massachusetts |
| 57 | Cola Ruth Harding | 17 | Daughter | — | Massachusetts |
| 58 | Carl A Olson | 54 | Head | Janitor | Sweden |
| 59 | Anna A Olson | 52 | Wife | Cabinet Maker | Sweden |
| 60 | Carl H Olson THIS PERSON | 22 | Son | — | Massachusetts |
| 61 | James Mcgaile | 27 | Head | Milkman | Massachusetts |
| 62 | Evelyn Mcgaile | 25 | Wife | — | Massachusetts |
| 63 | Judith Mcgaile | 1 | Daughter | — | Massachusetts |
| 64 | August R Johnson | 74 | Head | — | Finland |
| 65 | Ida Johnson | 77 | Wife | — | Finland |
| 66 | Esther Johnson | 33 | Daughter | Seamstress | Massachusetts |
| 67 | John Cauley | 53 | Head | Assistant Custodian | England |
| 68 | Helen Melia | 54 | Housekeeper | Housekeeper | Massachusetts |
| 69 | Joseph A Meade | 42 | Head | Mechanic | New York |
| 70 | Marguerite M Meade | 29 | Wife | — | Massachusetts |
| 71 | Monica Ann Meade | 1 | Daughter | — | Massachusetts |
| 72 | John K Lannon | 30 | Head | School Teacher | Pennsylvania |
| 73 | Emily M Lannon | 27 | Wife | — | Massachusetts |
| 74 | Joan Lannon | 2 | Daughter | — | Massachusetts |
| 75 | Nancy Lannon | 1 | Daughter | — | Massachusetts |
| 76 | George H Curtin | 41 | Head | Salesman | Massachusetts |
| 77 | Marion Curtin | 49 | Wife | — | Massachusetts |
| 78 | Marylou Curtin | 8 | Daughter | — | Massachusetts |
| 79 | Patricia Curtin | 4 | Daughter | — | Massachusetts |
| 80 | Louis E Good | 25 | Head | Truckman | Massachusetts |
Pedigree Summary
Carl
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)