ES
Earl Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Salt-Lake-County, Utah
Our Model Tree links this Earl Smith across the 1920, 1930 and 1940 US Censuses in Salt-Lake-County, Utah (XGBoost, ~Confirmed), with identified parents Albert & Albert — first a head (b.~1912), then head of a 3-person household.
Age 28
b. ~1912
Male
Head
Born: Utah
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Salt-Lake-County, Utah |
| Surname | Smith |
| Given Name | Earl J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Utah |
| 1935 Residence (City) | Salt Lake City |
| 1935 Residence (County) | Salt Lake |
| Additional Details | |
| Occupation | Cement Mixer |
| Industry | Contractor |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 876 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same House |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
| Occupation | Cement Mixer |
| Township / Ward | Salt Lake City |
| Est. Birth Year | ~1912 |
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 Earl | Age | Birth yr |
|---|---|---|---|---|
| Earl Smith | Head | — | 28 | ~1912 |
| Earl Smith | Son | — | 10 | ~1930 |
| Mary Smith | Spouse | — | 28 | ~1912 |
Census Appearances
1920
Salt Lake, …
Son, age 7
Salt Lake, Utah · implied b. ~1913 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Earl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Utah |
| Mother's Birthplace | Utah |
| Occupation | none |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1930
Salt Lake, …
Son, age 17
Salt Lake, Utah · implied b. ~1913 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Earl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Utah |
| Mother's Birthplace | Utah |
| Occupation | Apprentice |
| Industry | Drug Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1940
Salt-Lake-County, Utah
Head, age 28
Salt-Lake-County, Utah · implied b. ~1912 — 3 household members
| Surname | Smith |
| Given Name | Earl J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Utah |
| 1935 Residence (City) | Salt Lake City |
| 1935 Residence (County) | Salt Lake |
| Occupation | Cement Mixer |
| Industry | Contractor |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 876 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same House |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
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 Earl Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Albert Smith (~0.92 confidence) and father Albert Smith (~0.92 confidence) and mother Olive Smith (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Albert Smith
b. ~1892
Source father
● Household
· direct · ~0.92
Father
Albert Smith
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Olive Smith
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Earl Smith
Head · 1940 · age 28 · b. ~1912 · 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
40 people indexed on this census page (nara:1940:m-t0627-04223-00617)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | George C Hanson | 61 | Head | Railway Mail Clerk | Minnesota |
| 42 | Sarah M Hanson | 42 | Wife | — | Utah |
| 43 | Clara J Hanson | 15 | Daughter | — | Utah |
| 44 | Claude Bills | 47 | Head | Salesman | Utah |
| 45 | Helen M Bills | 47 | Wife | — | Penn |
| 46 | Donald Claude Bills | 17 | Son | — | Utah |
| 47 | Madeline L Graham | 15 | Stepdaughter | Stenographer | Utah |
| 48 | Walter R Graham | 19 | Stepson | Stockman | Idaho |
| 49 | Burnice H Wolfley | 35 | Head | Stationary Engineer | Utah |
| 50 | Agnes Wolfley | 37 | Wife | Stenographer | Utah |
| 51 | Barbra Wolfley | 9 | Daughter | — | Utah |
| 52 | Harvey P Gardner | 54 | Head | Teacher - Mus. Arts | Utah |
| 53 | Vera R Gardner | 45 | Wife | — | Utah |
| 54 | Irma L Gardner | 20 | Daughter | Stenographer | Utah |
| 55 | Hyrum Mulcock | 74 | Head | Contractor | England |
| 56 | Mary Ann Mulcock | 74 | Wife | — | England |
| 57 | Ernest H Christensen | 39 | Head | Police Officer | Colorado |
| 58 | Eliza L Christensen | 41 | Wife | — | Utah |
| 59 | Carrol Jean Christensen | 12 | Son | — | Utah |
| 60 | James Larry Christensen | 6 | Son | — | Utah |
| 61 | John H Christensen | 3 | Son | — | Utah |
| 62 | Austin Smith | 49 | Head | Office Manager | Utah |
| 63 | Belva Smith | 48 | Wife | — | Utah |
| 64 | Marjorie Smith | 19 | Daughter | — | Colorado |
| 65 | Frederick J Watson | 34 | Head | Traveling Representative | Canada |
| 66 | Ellena A Watson | 31 | Wife | — | Washington |
| 67 | Lester Taylor | 19 | Head | Laborer | Utah |
| 68 | Virginia Taylor | 18 | Wife | — | Utah |
| 69 | Oral Palmer | 24 | Head | Laborer | Utah |
| 70 | Marie Palmer | 22 | Wife | — | Utah |
| 71 | Oralene Palmer | 1 | Daughter | — | Utah |
| 72 | Earl J Smith THIS PERSON | 28 | Head | Cement Mixer | Utah |
| 73 | Mary L Smith | 28 | Wife | — | Utah |
| 74 | Earl F Smith | 10 | Son | — | Utah |
| 75 | Elmer Culmer | 27 | Head | Painter - Paperhanger | Utah |
| 76 | Esse Culmer | 29 | Wife | — | Utah |
| 77 | Fred Culmer | 4 | Son | — | Utah |
| 78 | John Culmer | 1 | Son | — | Utah |
| 79 | Donald M Walters | 23 | Head | Laborer | Utah |
| 80 | Bernice I Walters | 24 | Wife | — | Utah |
Pedigree Summary
Earl
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)