WB
William Brown — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Louis-County, Missouri
Our Model Tree links this William Brown across the 1920, 1930 and 1940 US Censuses in St.-Louis-County, Missouri (XGBoost, ~Confirmed), with identified parents Kinny & Wm — first a son (b.~1909), then head of a 4-person household.
Age 31
b. ~1909
Male
Son
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-County, Missouri |
| Surname | Brown |
| Given Name | William K |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Webster Groves City |
| 1935 Residence (County) | St. Louis |
| Additional Details | |
| Occupation | office clerk |
| Industry | utilities co. |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 2500 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Office Clerk |
| Township / Ward | Webster Groves City |
| Est. Birth Year | ~1909 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Jean Brown | Daughter | — | 24 | ~1916 |
| Kinny Brown | Head | — | 72 | ~1868 |
| William Brown | Son | — | 31 | ~1909 |
| Margaret Brown | Spouse | — | 65 | ~1875 |
Census Appearances
1920
St Louis, …
Son, age 11
St Louis, Missouri · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | William K. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | England |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
St Louis, …
Son, age 21
St Louis, Missouri · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | William K. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | England |
| Occupation | Trouble man |
| Industry | gas utility |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-County, Missouri
Son, age 31
St.-Louis-County, Missouri · implied b. ~1909 — 4 household members
| Surname | Brown |
| Given Name | William K |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Webster Groves City |
| 1935 Residence (County) | St. Louis |
| Occupation | office clerk |
| Industry | utilities co. |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 2500 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 William Brown across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Kinny Brown (~0.92 confidence) and father Wm Brown (~0.92 confidence) and father Henry Brown (~0.92 confidence) and mother Margaret Brown (~0.92 confidence) and mother Margaret Brown (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Kinny Brown
b. ~1868
Source father
● Household
· direct · ~0.92
Father
Wm Brown
b. ~1868
Source father
● Household
· direct · ~0.92
Father
Henry Brown
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Margaret Brown
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Margaret Brown
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Brown
Son · 1940 · age 31 · b. ~1909 · Missouri
★ You are viewing this record
Sibling
Jean Brown
Sibling · 1940 · age 24
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 — St.-Louis-County, Missouri
Open full size
1940 US Federal Census — St.-Louis-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02149-00838)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Roma | 65 | wife | — | Missouri |
| 42 | Richard Roma | 25 | son | Construction Engineer | Missouri |
| 43 | Roma S Roma | 25 | daughter | Secretary | Missouri |
| 44 | Ethel Roma | 39 | niece | Secretary | Missouri |
| 45 | June Reardon | 45 | head | — | New York |
| 46 | Kathleen Reardon | 19 | daughter | — | New York |
| 47 | Patricia Reardon | 15 | daughter | — | Missouri |
| 48 | James Reardon | 9 | son | — | Missouri |
| 49 | Joy E Dooley | 18 | lodger | — | Missouri |
| 50 | Kinny W Brown | 72 | head | — | Wisconsin |
| 51 | Margaret Brown | 65 | wife | — | England |
| 52 | William K Brown THIS PERSON | 31 | son | Office Clerk | Missouri |
| 53 | Jean Brown | 24 | daughter | Secretary | Missouri |
| 54 | Emil Sundhausen | 32 | head | Florist | Missouri |
| 55 | Ila Sundhausen | 28 | wife | — | Missouri |
| 56 | James Sundhausen | 7 | son | — | Missouri |
| 57 | Janet Sundhausen | 5 | daughter | — | Missouri |
| 58 | Raymond Barnes | 45 | head | Medical Doctor | Missouri |
| 59 | Viola Barnes | 37 | wife | — | Missouri |
| 60 | Jean Barnes | 10 | daughter | — | Missouri |
| 61 | Sally P Barnes | 71 | mother | — | Missouri |
| 62 | Peter Anderson | 82 | head | — | Denmark |
| 63 | Marie Anderson | 67 | wife | — | Denmark |
| 64 | Dorothy Anderson | 29 | daughter | Stenographer | Missouri |
| 65 | Hans Anderson | 75 | head | — | Denmark |
| 66 | Anna Anderson | 74 | wife | — | Denmark |
| 67 | Carl Anderson | 46 | son | Plasterer | Missouri |
| 68 | Mark Anderson | 40 | son | Plasterer | Missouri |
| 69 | Martha Anderson | 35 | daughter | Practical Nurse | Missouri |
| 70 | Herman W Kellerman | 62 | head | Rail Road Inspector | Missouri |
| 71 | Lily Kellerman | 62 | wife | — | Missouri |
| 72 | Gilbert C Kellerman | 32 | son | Lubricating Engineer | Missouri |
| 73 | Oscar S Green | 51 | head | Electrical Engineer | Texas |
| 74 | Mary S Green | 47 | wife | — | Indiana |
| 75 | Mary E Green | 18 | daughter | — | Texas |
| 76 | Arthur B Green | 15 | son | — | Texas |
| 77 | Russell Hoffman | 33 | head | Attorney | Missouri |
| 78 | Janice Hoffman | 31 | wife | — | Missouri |
| 79 | James Hoffman | 6 | son | — | Missouri |
| 80 | F Lee Major | 51 | head | Executive | Arkansas |
Related Census Records
Pedigree Summary
William + 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)