HB
Harold Brown — 1940 US Census Record
Model Tree available1940 United States Federal Census · Polk-County, Iowa
Our Model Tree links this Harold Brown across the 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed), with identified parents Cly & Grace — first a head (b.~1915), then head of a 5-person household.
Age 25
b. ~1915
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Iowa |
| Surname | Brown |
| Given Name | Harold F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Occupation | Sheet Metal |
| Industry | Foundry |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1300 |
| Highest Grade | H-2 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Sheet Metal |
| Township / Ward | Des Moines |
| Est. Birth Year | ~1915 |
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 Harold | Age | Birth yr |
|---|---|---|---|---|
| Beverly Brown | Daughter | — | ~1940 | |
| Shirley Brown | Daughter | — | 3 | ~1937 |
| Harold Brown | Head | — | 25 | ~1915 |
| Harold Brown | Son | — | 5 | ~1935 |
| Mabel Brown | Spouse | — | 27 | ~1913 |
Census Appearances
1920
Polk, Iowa
Son, age 5
Polk, Iowa · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Son, age 15
Polk, Iowa · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Head, age 25
Polk-County, Iowa · implied b. ~1915 — 5 household members
| Surname | Brown |
| Given Name | Harold F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines |
| 1935 Residence (County) | Polk |
| Occupation | Sheet Metal |
| Industry | Foundry |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1300 |
| Highest Grade | H-2 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Harold Brown across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Cly Brown (~0.92 confidence) and mother Grace Brown (~0.92 confidence) and father Alexander Brown (~0.92 confidence) and mother Beulah Brown (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Cly Brown
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Grace Brown
b. ~1892
Source mother
● Household
· direct · ~0.92
Father
Alexander Brown
b. ~1896
Source father
● Household
· direct · ~0.92
Mother
Beulah Brown
b. ~1901
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harold Brown
Head · 1940 · age 25 · b. ~1915 · Iowa
★ 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 — Polk-County, Iowa
Open full size
1940 US Federal Census — Polk-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01196-01049)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Milton R. Gale | 31 | Head | Upholsterer | Iowa |
| 2 | Madge V. Gale | 27 | Wife | — | Iowa |
| 3 | Patricia Ann Gale | 5 | Daughter | — | Iowa |
| 4 | Beverly Jean Gale | 2 | Daughter | — | Iowa |
| 5 | Lillian Pidgeon | 24 | Head | — | Iowa |
| 6 | Thomas Pidgeon | 32 | Son | Grocer | Illinois |
| 7 | Boyd Darrah | 26 | Head | Farm | Missouri |
| 8 | Emma Darrah | 23 | Wife | — | Iowa |
| 9 | Donna May Darrah | 2 | Daughter | — | Iowa |
| 10 | Mildred Darrah | 0 | Daughter | — | Iowa |
| 11 | Fred Baldock | 32 | Head | Gardener | Missouri |
| 12 | Daisy Baldock | 24 | Wife | — | Iowa |
| 13 | Dolores Baldock | 2 | Daughter | — | Iowa |
| 14 | Bonny Baldock | 0 | Daughter | — | Iowa |
| 15 | George W. Mcdowell | 31 | Head | Truck Driver | Canada |
| 16 | Julia Mcdowell | 26 | Wife | — | Iowa |
| 17 | Freddie Burkman | 39 | Head | Salesman | Nebraska |
| 18 | Althea Burkman | 33 | Wife | — | Iowa |
| 19 | Clifford Burkman | 13 | Son | — | Iowa |
| 20 | Gilbert Burkman | 10 | Son | — | Iowa |
| 21 | Forrest Marlow | 48 | Head | Barber | Illinois |
| 22 | Lucille Marlow | 36 | Wife | Beauty Oper. | Arkansas |
| 23 | Dora Ann Brook | 59 | Head | — | Iowa |
| 24 | John R. Brook | 36 | Son | Groceries | Iowa |
| 25 | Joseph R. Brook | 34 | Son | Groceries | Iowa |
| 26 | John R. Grabel | 56 | Head | Gardener | Iowa |
| 27 | Grace Grabel | 56 | Wife | — | Iowa |
| 28 | Harold F. Brown THIS PERSON | 25 | Head | Sheet Metal | Iowa |
| 29 | Mabel Brown | 27 | Wife | — | Missouri |
| 30 | Harold W. Brown | 5 | Son | — | Iowa |
| 31 | Shirley Brown | 3 | Daughter | — | Iowa |
| 32 | Beverly Brown | 0 | Daughter | — | Iowa |
| 33 | Harry S. Farr | 36 | Head | Salesman | Iowa |
| 34 | Almeda Farr | 38 | Wife | — | Iowa |
| 35 | Mildred Farr | 27 | Daughter | Nurse | Iowa |
| 36 | Emma Farr | 72 | Mother | — | Iowa |
| 37 | Sam Mifford | 46 | Head | Prop Roofing | Iowa |
| 38 | Irene Mifford | 46 | Wife | — | Colorado |
| 39 | Jack Mifford | 20 | Son | Laborer | Iowa |
| 40 | Eva Mifford | 18 | Daughter | — | Iowa |
Pedigree Summary
Harold
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)