WP
William Peters — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Louis-City-County, Missouri
Our Model Tree links this William Peters across the 1920, 1930 and 1940 US Censuses in St.-Louis-City-County, Missouri (XGBoost, ~Confirmed), with identified parents Bruno & Minnie — first a son (b.~1910), then head of a 3-person household.
Age 30
b. ~1910
Male
Son
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-City-County, Missouri |
| Surname | Peters |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis |
| 1935 Residence (County) | St. Louis City |
| Additional Details | |
| Occupation | Laborer |
| Industry | Pack. Dept. Store |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 800 |
| Highest Grade | H-2 |
| 1935 Residence | Same house |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Laborer |
| Township / Ward | St Louis |
| Est. Birth Year | ~1910 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Fred Peters | Head | — | 49 | ~1891 |
| William Peters | Son | — | 30 | ~1910 |
| Ida Peters | Spouse | — | 47 | ~1893 |
Census Appearances
1920
St Louis, …
Son, age 10
St Louis, Missouri · implied b. ~1910 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peters |
| Given Name | William F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
St Louis, …
Son, age 20
St Louis, Missouri · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peter |
| Given Name | William F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | Laborer |
| Industry | Bottle Supply |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-City-County, Missouri
Son, age 30
St.-Louis-City-County, Missouri · implied b. ~1910 — 3 household members
| Surname | Peters |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis |
| 1935 Residence (County) | St. Louis City |
| Occupation | Laborer |
| Industry | Pack. Dept. Store |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 800 |
| Highest Grade | H-2 |
| 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 Peters across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Bruno Peter (~0.92 confidence) and mother Minnie Peter (~0.92 confidence) and father Fred Peters (~0.92 confidence) and father Fred Peters (~0.92 confidence) and mother Ida Peters (~0.92 confidence) and mother Ida Peters (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Bruno Peter
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Minnie Peter
b. ~1889
Source mother
● Household
· direct · ~0.92
Father
Fred Peters
b. ~1890
Source father
● Household
· direct · ~0.92
Father
Fred Peters
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Ida Peters
b. ~1893
Source mother
● Household
· direct · ~0.92
Mother
Ida Peters
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Peters
Son · 1940 · age 30 · b. ~1910 · Missouri
★ 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 — St.-Louis-City-County, Missouri
Open full size
1940 US Federal Census — St.-Louis-City-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02194-00759)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Helen Hammack | 20 | Daughter | Office Clerk | Missouri |
| 2 | Kenyon Hammack | 15 | Son | — | Missouri |
| 3 | June Hammack | 12 | Daughter | — | Missouri |
| 4 | Julius Fink | 32 | Head | Office Clerk | Missouri |
| 5 | Hilda Fink | 32 | Wife | — | Missouri |
| 6 | Phyllis Fink | 4 | Daughter | — | Missouri |
| 7 | Erich Wittkopf | 45 | Head | Bookkeeper | Missouri |
| 8 | Alice Wittkopf | 50 | Wife | — | Kansas |
| 9 | Raymond C. Wiethulter | 35 | Head | Telephone Installer | Missouri |
| 10 | Stella Wiethulter | 27 | Wife | — | Missouri |
| 11 | Walter Graeff | 45 | Head | Photo Engraver | Missouri |
| 12 | Laura Graeff | 37 | Wife | — | Missouri |
| 13 | Fred Koeneman | 37 | Head | Train Agent | Missouri |
| 14 | Agnes Koeneman | 35 | Wife | — | Missouri |
| 15 | Virginia Koeneman | 16 | Daughter | — | Missouri |
| 16 | Shirley Koeneman | 14 | Daughter | — | Missouri |
| 17 | James Bidner | 52 | Head | Real Estate Broker | Hungary |
| 18 | Millie Bidner | 51 | Wife | — | Ohio |
| 19 | Fred Peters | 49 | Head | Dept Manager | Missouri |
| 20 | Ida Peters | 47 | Wife | — | Missouri |
| 21 | William Peters THIS PERSON | 30 | Son | Laborer | Missouri |
| 22 | Fred Frank | 51 | Head | Sheet Metal Worker | Germany |
| 23 | Bertha Frank | 48 | Wife | — | Ohio |
| 24 | Barbara R. Frank | 11 | Daughter | — | Missouri |
| 25 | Elsie Fluegger | 50 | Head | — | Ohio |
| 26 | Lena Fluegger | 75 | Mother | — | Germany |
| 27 | Grover Fairchild | 53 | Head | Clerk-Office | Missouri |
| 28 | Mary Fairchild | 44 | Wife | — | Missouri |
| 29 | Grover Fairchild | 23 | Son | Clerk-Desk | Missouri |
| 30 | Helen Fairchild | 15 | Daughter | — | Missouri |
| 31 | David O'Brien | 48 | Brother-in-law | Laundry Worker | Missouri |
| 32 | Bernard Mcmahon | 46 | Lodger | Bookkeeper | Missouri |
| 33 | Robert Mcmahon | 12 | Lodger | — | Missouri |
| 34 | Florenz Feager | 48 | Head | Merchant | Missouri |
| 35 | Winnifred Feager | 44 | Wife | — | Nebraska |
| 36 | Doris Feager | 12 | Daughter | — | Missouri |
| 37 | John Allen | 31 | Step-son | Commercial Artist | Missouri |
| 38 | Kenneth Allen | 29 | Step-son | Office Worker | Missouri |
| 39 | Jess Earl | 33 | Head | Painter | Missouri |
| 40 | Ethel Earl | 36 | Wife | — | Illinois |
Pedigree Summary
William
Gen 1 · 6 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)