RB
Robert Brooks — 1940 US Census Record
Model Tree available1940 United States Federal Census · Polk-County, Iowa
Our Model Tree links this Robert Brooks across the 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed), with identified parents Andrew & Ed — first a son (b.~1917), then head of a 4-person household.
Age 23
b. ~1917
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Iowa |
| Surname | Brooks |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | Black |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Occupation | Bakery Helper |
| Industry | Wholesale Retail Bakery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1144 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Bakery Helper |
| Township / Ward | Des Moines City |
| Est. Birth Year | ~1917 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Winifred Brooks | Daughter | — | 21 | ~1919 |
| Addison Brooks | Head | — | 37 | ~1903 |
| Robert Brooks | Son | — | 23 | ~1917 |
| Ethel Brooks | Spouse | — | 49 | ~1891 |
Census Appearances
1920
Polk, Iowa
Son, age 2
Polk, Iowa · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brooks |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Missouri |
| Can Read | No |
| Can Write | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Son, age 12
Polk, Iowa · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brooks |
| Given Name | Robert L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| 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
Son, age 23
Polk-County, Iowa · implied b. ~1917 — 4 household members
| Surname | Brooks |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | Black |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Occupation | Bakery Helper |
| Industry | Wholesale Retail Bakery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1144 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| 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 Robert Brooks across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Andrew Brooks (~0.92 confidence) and father Ed Brooks (~0.92 confidence) and mother Ethel Brooks (~0.92 confidence) and mother Ethel Brooks (~0.92 confidence) and father Addison Brooks (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Andrew Brooks
b. ~1883
Source father
● Household
· direct · ~0.92
Father
Ed Brooks
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Ethel Brooks
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Ethel Brooks
b. ~1891
Source mother
● Household
· direct · ~0.92
Father
Addison Brooks
b. ~1903
Source father
● Household
· direct · ~0.92
This person
Anchor record
Robert Brooks
Son · 1940 · age 23 · b. ~1917 · Iowa
★ You are viewing this record
Sibling
Winifred Brooks
Sibling · 1940 · age 21
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 — 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-t0627-01196-00149)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Gloria Rae Cant | 4 | daughter | — | Iowa |
| 42 | Fred Hamilton | 60 | lodger | Bottom Man | Iowa |
| 43 | Elizabeth Statton | 52 | head | — | Iowa |
| 44 | Ruby G Statton | 23 | daughter | Mechanic | Iowa |
| 45 | Lewis Stuart | 36 | nephew | Research | Iowa |
| 46 | Phillip Fyfe | 26 | head | Service Man | Iowa |
| 47 | Eva Fyfe | 24 | wife | Packer | Iowa |
| 48 | John W Elinge | 63 | head | — | Iowa |
| 49 | Anna Elinge | 62 | wife | — | Iowa |
| 50 | Harold Brittian | 23 | son in law | Service Man | Nebraska |
| 51 | Alda Brittian | 24 | daughter | — | Iowa |
| 52 | Eleanor Brittian | 2 | daughter | — | Iowa |
| 53 | John W Robinson | 58 | head | Porter | Virginia |
| 54 | Mayme Robinson | 46 | wife | — | Virginia |
| 55 | Lucille Robinson | 5 | daughter | — | Iowa |
| 56 | John W Fletcher | 59 | head | Janitor | Virginia |
| 57 | Mary E Fletcher | 62 | wife | — | South Carolina |
| 58 | Mamie E Jeffers | 63 | head | — | Virginia |
| 59 | Florence Miller | 62 | lodger | — | Iowa |
| 60 | Salemma Morris | 74 | lodger | — | Georgia |
| 61 | Addison Brooks | 37 | head | Blacksmith | Iowa |
| 62 | Ethel Brooks | 49 | wife | — | Missouri |
| 63 | Robert Brooks THIS PERSON | 23 | son | Bakery Helper | Iowa |
| 64 | Winifred Brooks | 21 | daughter | — | Iowa |
| 65 | Charles Gross | 52 | head | Merchant Police | Iowa |
| 66 | Rose Gross | 45 | wife | — | Iowa |
| 67 | Edgar Gross | 18 | son | — | Iowa |
| 68 | Lois Gross | 16 | daughter | Maid | Iowa |
| 69 | Ruby Gross | 14 | daughter | — | Iowa |
| 70 | Virginia Gross | 12 | daughter | — | Iowa |
| 71 | Charles Gross | 10 | son | — | Iowa |
| 72 | Rose Marie Gross | 9 | daughter | — | Iowa |
| 73 | David Gross | 7 | son | — | Iowa |
| 74 | Richard Gross | 5 | son | — | Iowa |
| 75 | Thomas Gross | 20 | son | Laborer | Iowa |
| 76 | Josephine Gross | 19 | daughter in law | — | Iowa |
| 77 | Lois Charlene Gross | 2 | granddaughter | — | Iowa |
| 78 | Helen Gross | 0 | daughter | — | Iowa |
| 79 | Glenn Meccum | 43 | head | Cement Work | Iowa |
| 80 | Donald Copley | 36 | head | Roofer | Iowa |
Pedigree Summary
Robert + 1 sibling
Gen 1 · 5 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)