DB
Donald Brown — 1940 US Census Record
Model Tree available1940 United States Federal Census · Utah-County, Utah
Our Model Tree links this Donald Brown across the 1920, 1930 and 1940 US Censuses in Utah-County, Utah (XGBoost, ~Confirmed), with identified parents George & George — first a son (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Male
Son
Born: Utah
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Utah-County, Utah |
| Surname | Brown |
| Given Name | Donald L. Jr. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Utah |
| 1935 Residence (City) | Provo City |
| 1935 Residence (County) | Utah |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | C-3 |
| 1935 Residence | Same place |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
| Township / Ward | Provo 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Donald | Age | Birth yr |
|---|---|---|---|---|
| George Brown | Head | — | 60 | ~1880 |
| Lloyd Brown | Son | — | 12 | ~1928 |
| Donald Brown | Son | — | 22 | ~1918 |
| Julia Brown | Spouse | — | 59 | ~1881 |
Census Appearances
1920
Utah, Utah
Son, age 2
Utah, Utah · implied b. ~1918 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Utah |
| Mother's Birthplace | Illinois |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1930
Utah, Utah
Son, age 12
Utah, Utah · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Utah |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1940
Utah-County, Utah
Son, age 22
Utah-County, Utah · implied b. ~1918 — 4 household members
| Surname | Brown |
| Given Name | Donald L. Jr. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Utah |
| 1935 Residence (City) | Provo City |
| 1935 Residence (County) | Utah |
| Class of Worker | 0 |
| Highest Grade | C-3 |
| 1935 Residence | Same place |
| 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 Donald Brown across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Brown (~0.92 confidence) and father George Brown (~0.92 confidence) and mother Julia Brown (~0.92 confidence) and mother Julia Brown (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Brown
b. ~1880
Source father
● Household
· direct · ~0.92
Father
George Brown
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Julia Brown
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Julia Brown
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Donald Brown
Son · 1940 · age 22 · b. ~1918 · Utah
★ You are viewing this record
Sibling
Lloyd Brown
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Utah-County, Utah
Open full size
1940 US Federal Census — Utah-County, Utah
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04220-00049)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Margaret S. Wade | 22 | wife | Housework | Utah |
| 2 | G. Eugene Wade | 1 | son | — | Utah |
| 3 | Clifford Davis | 32 | head | Gardener | Utah |
| 4 | Beryl B. Davis | 28 | wife | Housework | Utah |
| 5 | Elden G. Davis | 11 | son | — | Utah |
| 6 | Bonnie Davis | 9 | daughter | — | Utah |
| 7 | Marilyn Davis | 7 | daughter | — | Utah |
| 8 | Russell Davis | 5 | son | — | Utah |
| 9 | Thomas L. Nuttall | 34 | head | Local Salesman | Utah |
| 10 | Bessie F. Nuttall | 34 | wife | Housework | Utah |
| 11 | Arlene Nuttall | 4 | daughter | — | Utah |
| 12 | B. F. Johnson | 75 | head | — | Utah |
| 13 | Mary J. Johnson | 70 | wife | Housework | Utah |
| 14 | Harry C. Cook | 48 | head | Supervisory Agent | Ohio |
| 15 | Edith F. Cook | 45 | wife | Housework | Iowa |
| 16 | Glen Ross Cook | 24 | roomer | Assistant Manager | Wyoming |
| 17 | Margaret Ann Mckey | 48 | lodger | Lower Terminal Operator | Hawaii |
| 18 | Pierce T. Norton | 47 | head | Owner-Operator Retail Lumber | Wisconsin |
| 19 | Catherine E. Norton | 50 | wife | Housework | Minnesota |
| 20 | Kathleen A. Norton | 12 | daughter | — | Utah |
| 21 | Thomas J. Norton | 6 | son | — | Utah |
| 22 | George A. Brown | 60 | head | Owner, Manager | Utah |
| 23 | Julia R. Brown | 59 | wife | Housework | Illinois |
| 24 | Lloyd G. Brown | 12 | son | — | Utah |
| 25 | Donald L. Jr. Brown THIS PERSON | 22 | son | — | Utah |
| 26 | Hyde J. Ward | 25 | head | Salesman-Repairman | Utah |
| 27 | Verita J. Ward | 20 | wife | Housework | Utah |
| 28 | Andrew Mcdonald | 32 | head | Cook | Utah |
| 29 | Lois B. Mcdonald | 27 | wife | Seamstress | Idaho |
| 30 | Lois Elaine Mcdonald | 7 | daughter | — | Utah |
| 31 | Leon J. Myrup | 32 | head | Chemistry Technician | Utah |
| 32 | Elizabeth C. Myrup | 34 | wife | Housework | Utah |
| 33 | Richard C. Myrup | 14 | son | Substitute Paper Carrier | Utah |
| 34 | Donald L. Myrup | 11 | son | — | Utah |
| 35 | Jerrold J. Myrup | 9 | son | — | Utah |
| 36 | Marilyn Myrup | 5 | daughter | — | Utah |
| 37 | William H. Callahan | 54 | head | Director Welfare Bureau | Utah |
| 38 | Frances J. Callahan | 50 | wife | Housework | Utah |
| 39 | Sterling G. Callahan | 24 | son | — | Utah |
| 40 | Earl L. Callahan | 17 | son | — | Utah |
Pedigree Summary
Donald + 1 sibling
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)