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Carl Larson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Carl Larson across the 1910, 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Maria & Nels — first a head (b.~1907), then head of a 4-person household.
Age 33
b. ~1907
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Larson |
| Given Name | Carl R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Cashier |
| Industry | Brooklyn Trust |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1800 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Cashier |
| Township / Ward | Boston City |
| Est. Birth Year | ~1907 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Carl | Age | Birth yr |
|---|---|---|---|---|
| Joyce Larson | Daughter | — | 5 | ~1935 |
| Carl Larson | Head | — | 33 | ~1907 |
| Peter Larson | Son | — | 3 | ~1937 |
| Serena Larson | Spouse | — | 33 | ~1907 |
Census Appearances
1910
Suffolk, Massachusetts
Son, age 1
Suffolk, Massachusetts · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Norway |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Suffolk, Massachusetts
Son, age 11
Suffolk, Massachusetts · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Clarence G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Norway |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Son, age 21
Suffolk, Massachusetts · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Norway |
| Occupation | Clerk |
| Industry | Investments |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Head, age 33
Suffolk-County, Massachusetts · implied b. ~1907 — 4 household members
| Surname | Larson |
| Given Name | Carl R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Occupation | Cashier |
| Industry | Brooklyn Trust |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1800 |
| Highest Grade | H-4 |
| 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 Larson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Maria Larson (~0.92 confidence) and father Nels Larson (~0.92 confidence) and mother Marion Larson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Maria Larson
b. ~1877
Source mother
● Household
· direct · ~0.92
Father
Nels Larson
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Marion Larson
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Carl Larson
Head · 1940 · age 33 · b. ~1907 · 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-t0627-01682-00352)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ida Gendron | 37 | Daughter | Service Operator | Massachusetts |
| 2 | Charles Gendron | 33 | Son | Painter | Massachusetts |
| 3 | Leonard Gendron | 31 | Son | Painter | Massachusetts |
| 4 | George Gendron | 28 | Son | Machinist | Massachusetts |
| 5 | Thomas M. Hunt | 52 | Head | Accountant | Massachusetts |
| 6 | Elizabeth A. Hunt | 46 | Wife | — | Massachusetts |
| 7 | Carl R. Larson THIS PERSON | 33 | Head | Cashier | Massachusetts |
| 8 | Serena Larson | 33 | Wife | — | Maine |
| 9 | Joyce H. Larson | 5 | Daughter | — | Massachusetts |
| 10 | Peter J. Larson | 3 | Son | — | Massachusetts |
| 11 | Cora K. Koehler | 45 | Head | Waitress | Canada |
| 12 | Albert Koehler | 25 | Son | Window Trimmer | Massachusetts |
| 13 | Karl Koehler | 21 | Son | New Worker | Massachusetts |
| 14 | Elizabeth Koehler | 23 | Daughter-in-law | — | Michigan |
| 15 | Eleanor T. Wall | 41 | Head | — | Massachusetts |
| 16 | Edward Wall | 23 | Son | Loading | New Jersey |
| 17 | John Wall | 20 | Son | — | New Jersey |
| 18 | Joan Wall | 15 | Daughter | — | Massachusetts |
| 19 | Nancy Wall | 10 | Daughter | — | Massachusetts |
| 20 | Michael Manning | 70 | Father | — | Ireland |
| 21 | Nora Donovan | 40 | Lodger | Operator | Massachusetts |
| 22 | Linwood Bennett | 45 | Lodger | Refrigeration | Massachusetts |
| 23 | Katherine Driscoll | 40 | Head | Bookkeeper | Massachusetts |
| 24 | Annie Driscoll | 72 | Mother | — | New York |
| 25 | Francis X. Sullivan | 34 | Head | Teacher | Massachusetts |
| 26 | Mary G. Sullivan | 34 | Wife | — | Massachusetts |
| 27 | Edward J. Mcaloon | 34 | Head | Shipper | Massachusetts |
| 28 | Frances E. Mcaloon | 36 | Wife | Bookkeeper | New York |
| 29 | Mabel Reed | 54 | Head | Baker | England |
| 30 | Aubrey G. Hill | 30 | Son | Truck Driver | England |
| 31 | Rose Mckenna | 49 | Head | Operator | Massachusetts |
| 32 | Mary Kelly | 34 | Sister | Operator | Massachusetts |
| 33 | Helen Augustas | 51 | Head | — | Greece |
| 34 | Irene Augustas | 25 | Daughter | Typist | Massachusetts |
| 35 | Mary Augustas | 22 | Daughter | Secretary | Massachusetts |
| 36 | Georgia Augustas | 21 | Daughter | — | Massachusetts |
| 37 | Olive Perham | 60 | Head | Photographic Retoucher | England |
| 38 | Sarah A. Mcpherson | 68 | Lodger | Cook | England |
| 39 | Alberta Martin | 43 | Lodger | Accommodator | Canada |
| 40 | Edward J. Hutchinson | 71 | Head | — | Massachusetts |
Pedigree Summary
Carl
Gen 1 · 3 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)