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Leon Brown — 1940 US Census Record
Model Tree available1940 United States Federal Census · Salt-Lake-County, Utah
Our Model Tree links this Leon Brown across the 1910, 1920, 1930 and 1940 US Censuses in Salt-Lake-County, Utah (XGBoost, ~Confirmed), with identified parents John & John — first a head (b.~1905), then head of a 4-person household.
Age 35
b. ~1905
Male
Head
Born: Utah
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Salt-Lake-County, Utah |
| Surname | Brown |
| Given Name | Leon R |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Utah |
| 1935 Residence (City) | Salt Lake City |
| 1935 Residence (County) | Salt Lake |
| Additional Details | |
| Occupation | Manager |
| Industry | Florist Shop |
| Class of Worker | OA |
| Hours Worked | 75 |
| Income (1939) | 900 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same House |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
| Occupation | Manager |
| Township / Ward | Salt Lake City |
| Est. Birth Year | ~1905 |
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 Leon | Age | Birth yr |
|---|---|---|---|---|
| Dardis Brown | Son | — | 2 | ~1938 |
| Leon Brown | Head | — | 35 | ~1905 |
| Sherman Brown | Son | — | 10 | ~1930 |
| Ione Brown | Spouse | — | 35 | ~1905 |
Census Appearances
1910
Salt Lake, …
Son, age 6
Salt Lake, Utah · implied b. ~1904 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Leon |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Utah |
| Mother's Birthplace | Utah |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1920
Salt Lake, …
Son, age 16
Salt Lake, Utah · implied b. ~1904 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Leon |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Utah |
| Mother's Birthplace | Utah |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1930
Salt Lake, …
Son, age 26
Salt Lake, Utah · implied b. ~1904 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Leon |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Utah |
| Age at First Marriage | 21 |
| Father's Birthplace | Utah |
| Mother's Birthplace | Utah |
| Occupation | Operator |
| 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 35
Salt-Lake-County, Utah · implied b. ~1905 — 4 household members
| Surname | Brown |
| Given Name | Leon R |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Utah |
| 1935 Residence (City) | Salt Lake City |
| 1935 Residence (County) | Salt Lake |
| Occupation | Manager |
| Industry | Florist Shop |
| Class of Worker | OA |
| Hours Worked | 75 |
| Income (1939) | 900 |
| Highest Grade | Hs 3 |
| 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 Leon Brown across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Brown (~0.92 confidence) and father John Brown (~0.92 confidence) and father John Brown (~0.92 confidence) and mother Nellie Brown (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Brown
b. ~1876
Source father
● Household
· direct · ~0.92
Father
John Brown
b. ~1873
Source father
● Household
· direct · ~0.92
Father
John Brown
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Nellie Brown
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Leon Brown
Head · 1940 · age 35 · b. ~1905 · 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
38 people indexed on this census page (nara:1940:m-t0627-04225-00095)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Hanna H Guebell | 56 | Head | — | England |
| 2 | Winor Guebell | 20 | Daughter | Stenographer | Utah |
| 3 | Lawrence Guebell | 17 | Son | — | Wyoming |
| 4 | John G Mackey | 32 | Head | Night Watchman | Utah |
| 5 | Frances D Mackey | 32 | Wife | — | Utah |
| 6 | Lowell J Mackey | 10 | Son | — | Utah |
| 7 | Keith Mackey | 9 | Son | — | Utah |
| 8 | Maurice Mackey | 5 | Son | — | Wyoming |
| 9 | J. B. Stoll | 66 | Head | Janitor | Germany |
| 10 | Sina F Stoll | 66 | Wife | — | Germany |
| 11 | Nole C Bell | 28 | Head | Clerk | Utah |
| 12 | Martha E Bell | 30 | Wife | — | Utah |
| 13 | Bruce N Bell | 4 | Son | — | Utah |
| 14 | Jerry R Bell | 3 | Son | — | Utah |
| 16 | Arnold W Conrad | 33 | Head | Labor | Utah |
| 17 | Bertha H Conrad | 31 | Wife | — | Utah |
| 18 | Constance N Conrad | 14 | Daughter | — | Utah |
| 19 | Bernhard H Conrad | 12 | Son | — | California |
| 20 | Richard A Conrad | 11 | Son | — | Utah |
| 21 | Arnold O Conrad | 9 | Son | — | California |
| 22 | Leon R Brown THIS PERSON | 35 | Head | Manager | Utah |
| 23 | Ione L Brown | 35 | Wife | Bookkeeper | Utah |
| 24 | Sherman D Brown | 10 | Son | — | Utah |
| 25 | Dardis S Brown | 2 | Son | — | Utah |
| 26 | Smith B Quick | 27 | Head | Laborer | Utah |
| 27 | Mary A Quick | 29 | Wife | — | Utah |
| 28 | Frank W Salt | 39 | Head | Machinist | Utah |
| 29 | Emma Salt | 38 | Wife | — | Utah |
| 30 | Margaret R Salt | 15 | Daughter | — | Utah |
| 31 | Richard L Salt | 13 | Son | — | Utah |
| 32 | Samuel Kung | 83 | Father | — | Switzerland |
| 33 | William F Kung | 17 | Son | — | Utah |
| 34 | Richard P Worthen | 19 | Head | — | Utah |
| 35 | Dorothy P Worthen | 19 | Wife | — | Utah |
| 36 | George W Gatre | 64 | Head | — | Iowa |
| 38 | Peter G Brown | 44 | Head | Manager | Utah |
| 39 | Margaret S Brown | 40 | Wife | — | Wyoming |
| 40 | Jack Brown | 18 | Son | — | Utah |
Related Census Records
Pedigree Summary
Leon
Gen 1 · 4 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)