CM
Charles Mayer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Louis-City-County, Missouri
Our Model Tree links this Charles Mayer across the 1930 and 1940 US Censuses in St.-Louis-City-County, Missouri (XGBoost, ~Confirmed) — first a son (b.~1901), then head of a 6-person household.
Age 39
b. ~1901
Male
Son
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-City-County, Missouri |
| Surname | Mayer |
| Given Name | Charles |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis (City) |
| 1935 Residence (County) | St. Louis City |
| Additional Details | |
| Occupation | machinist |
| Industry | shoe factory |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 598 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Machinist |
| Township / Ward | St Louis City |
| Est. Birth Year | ~1901 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Charles | Age | Birth yr |
|---|---|---|---|---|
| Helen Mayer | Spouse | — | 72 | ~1868 |
| Charles Mayer | Son | — | 39 | ~1901 |
| Dorothy Mayer | Daughter | — | 30 | ~1910 |
| Fred Mayer | Head | — | 74 | ~1866 |
| Frank Mayer | Son | — | 36 | ~1904 |
| Julius Mayer | Son | — | 38 | ~1902 |
Census Appearances
1930
St Louis, …
Head, age 28
St Louis, Missouri · implied b. ~1902 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Meyer |
| Given Name | Carl |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Missouri |
| Age at First Marriage | 20 |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | Machinist |
| Industry | Rope factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | 55.00 |
| Home Value / Rent | R |
| Veteran | R |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-City-County, Missouri
Son, age 39
St.-Louis-City-County, Missouri · implied b. ~1901 — 6 household members
| Surname | Mayer |
| Given Name | Charles |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis (City) |
| 1935 Residence (County) | St. Louis City |
| Occupation | machinist |
| Industry | shoe factory |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 598 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| 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 Charles Mayer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Charles Mayer
Son · 1940 · age 39 · b. ~1901 · Missouri
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Sibling
Julius Mayer
Sibling · 1940 · age 38
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Mayer
Sibling · 1940 · age 36
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Mayer
Sibling · 1940 · age 30
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-City-County, Missouri
Open full size
1940 US Federal Census — St.-Louis-City-County, Missouri
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-02181-00079)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Louis Tisch | 25 | Head | Clerical | Missouri |
| 2 | Ethel Tisch | 22 | daughter | Clerical | Missouri |
| 3 | Lemoine Tisch | 12 | son | — | Missouri |
| 4 | Frank Krominaker | 55 | head | Painter | Indiana |
| 5 | Mary Krominaker | 54 | wife | — | Missouri |
| 6 | William J. Kupfer | 51 | head | Plants Head | Missouri |
| 7 | Anna M. Kupfer | 47 | wife | — | Missouri |
| 8 | William Kupfer | 27 | son | — | Missouri |
| 9 | Anita Kupfer | 17 | daughter | Attendant | Missouri |
| 10 | Arline Kupfer | 10 | daughter | — | Missouri |
| 11 | Rosemary Kupfer | 8 | daughter | — | Missouri |
| 12 | Kenneth L. Phillips | 40 | head | Machinist | Missouri |
| 13 | Sophie Phillips | 41 | wife | Merchandise Marker | Missouri |
| 14 | Tillie Basler | 40 | lodger | Merchandise Marker | Missouri |
| 15 | John Mayer | 47 | head | Baker | Missouri |
| 16 | Josephine Mayer | 45 | wife | — | Illinois |
| 17 | John M. Mayer | 25 | son | Policeman | Missouri |
| 18 | Alice S. Mayer | 23 | daughter | Clerical Worker | Missouri |
| 19 | Joseph A. Ross | 56 | head | Railway Clerk | Missouri |
| 20 | Eunice Ross | 48 | wife | — | Missouri |
| 21 | Joseph A. Ross | 18 | son | Clerical | Missouri |
| 22 | Mary Agnes Ross | 16 | daughter | — | Missouri |
| 23 | Virginia Ross | 14 | daughter | — | Missouri |
| 24 | Mabel Cash | 45 | sister in law | Stenographer | Missouri |
| 25 | Elizabeth Gollmann | 58 | head | — | Missouri |
| 26 | David C. Murphy | 46 | brother | Contractor | Missouri |
| 27 | David E. Murphy | 20 | nephew | Shipping Clerk | Missouri |
| 28 | Leon Hoover | 42 | head | Confectioner | Pennsylvania |
| 29 | Ruth Hoover | 37 | wife | Confectioner | Missouri |
| 30 | Norman Hoover | 16 | son | — | Missouri |
| 31 | Eileen Hoover | 13 | daughter | — | Missouri |
| 32 | Fred Mayer | 74 | head | Blacksmith | Ohio |
| 33 | Helen Mayer | 72 | wife | — | Kentucky |
| 34 | Charles Mayer THIS PERSON | 39 | son | Machinist | Missouri |
| 35 | Julius Mayer | 38 | son | Laborer | Missouri |
| 36 | Frank Mayer | 36 | son | Laborer | Missouri |
| 37 | Dorothy Mayer | 30 | daughter | Stock Clerk | Missouri |
| 38 | Angelo Philippine | 41 | head | Stationary Engineer | Missouri |
| 39 | Florence Philippine | 38 | wife | — | Missouri |
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)