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Fred Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Salt-Lake-County, Utah
Our Model Tree links this Fred Clark across the 1920, 1930 and 1940 US Censuses in Salt-Lake-County, Utah (XGBoost, ~Confirmed), with identified parents Annie — first a head (b.~1898), then head of a 5-person household.
Age 42
b. ~1898
Male
Head
Born: England
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Salt-Lake-County, Utah |
| Surname | Clark |
| Given Name | Fred H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Salt Lake City |
| 1935 Residence (County) | Salt Lake |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Automobile Mechanic |
| Industry | Automotive |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1800 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth Country | England |
| Birthplace (normalized) | england |
| Occupation | Automobile Mechanic |
| Township / Ward | Salt Lake City |
| Est. Birth Year | ~1898 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Fred | Age | Birth yr |
|---|---|---|---|---|
| Fred Clark | Head | — | 42 | ~1898 |
| George Wallace | Other | — | 72 | ~1868 |
| Frederic Clark | Son | — | 12 | ~1928 |
| Jack Clark | Son | — | 9 | ~1931 |
| Fern Clark | Spouse | — | 39 | ~1901 |
Census Appearances
1920
Salt Lake, …
Son, age 21
Salt Lake, Utah · implied b. ~1899 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Fred A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | England |
| Year of Immigration | 1906 |
| Naturalization Status | Naturalized |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Salesman |
| Industry | Drug Store |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Year of Naturalization | 1916 |
| Birthplace (normalized) | england |
1930
Salt Lake, …
Head, age 30
Salt Lake, Utah · implied b. ~1900 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Fred A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1906 |
| Age at First Marriage | 27 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Machinist |
| Industry | Automobile |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 27.00 |
| Radio Set | No |
| Veteran | Yes |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
Salt-Lake-County, Utah
Head, age 42
Salt-Lake-County, Utah · implied b. ~1898 — 5 household members
| Surname | Clark |
| Given Name | Fred H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Salt Lake City |
| 1935 Residence (County) | Salt Lake |
| Naturalization Status | Naturalized |
| Occupation | Automobile Mechanic |
| Industry | Automotive |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1800 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth Country | England |
| Birthplace (normalized) | england |
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 Fred Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Annie Clark (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Annie Clark
b. ~1864
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Fred Clark
Head · 1940 · age 42 · b. ~1898 · Utah
★ 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 — Salt-Lake-County, Utah
Open full size
1940 US Federal Census — Salt-Lake-County, Utah
Page Contents
30 people indexed on this census page (nara:1940:m-t0627-04227-00332)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jane Rock | 21 | Daughter | Nurse Aid | Utah |
| 42 | Hope Rock | 19 | Daughter | Librarian | Utah |
| 43 | Beverly Rock | 16 | Daughter | Librarian | Utah |
| 44 | Carol Rock | 14 | Daughter | — | Utah |
| 45 | Earl Bath | 27 | Son-in-law | Office Clerk | Utah |
| 46 | Olive Bath | 24 | Daughter | — | Utah |
| 47 | Janet Bath | 4 | Daughter | — | Utah |
| 48 | Franklin S. Nelson | 33 | Head | Aviator | Utah |
| 49 | Maxine B. Nelson | 33 | Wife | — | Utah |
| 50 | Jack Calvert | 25 | Head | Laborer | Utah |
| 51 | Arzella Calvert | 22 | Wife | — | Utah |
| 52 | Ellie Calvert | 1 | Daughter | — | Utah |
| 53 | Clyda Calvert | 0 | Daughter | — | Utah |
| 54 | Fred H. Clark THIS PERSON | 42 | Head | Automobile Mechanic | England |
| 55 | Fern B. Clark | 39 | Wife | Graduate Nurse | Canada |
| 56 | Frederic W. Clark | 12 | Son | — | Utah |
| 57 | Jack H. Clark | 9 | Son | — | Utah |
| 58 | George H. Wallace | 72 | Father-in-law | — | Utah |
| 59 | Alice V. Bain | 62 | Head | Servant | Utah |
| 60 | Clarence P. Roth | 51 | Head | Salesman | New York |
| 61 | Helen K. Roth | 44 | Wife | — | Utah |
| 62 | Barbara R. Roth | 15 | Daughter | — | Utah |
| 63 | William R. Wallace | 74 | Head | Director | Utah |
| 64 | Irmgard F. Prusse | 27 | Housekeeper | Housekeeper | Germany |
| 65 | Morris Marks | 55 | Head | Leather | England |
| 66 | Helen Marks | 54 | Wife | — | Hungary |
| 67 | John C. Brasi | 40 | Head | Solicitor & Correspondent | Italy |
| 68 | Gilda T. Brasi | 27 | Wife | — | Salt Lake City |
| 69 | Chas. Melvin French | 26 | Son | Sales Service | Idaho |
| 70 | William L. Butler | 46 | Head | Combustion Engineer | Texas |
Pedigree Summary
Fred
Gen 1 · 1 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)