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Mary Wells — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Louis-County, Missouri
Our Model Tree links this Mary Wells across the 1930 and 1940 US Censuses in St.-Louis-County, Missouri (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 8-person household.
Age 15
b. ~1925
Female
Daughter
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-County, Missouri |
| Surname | Wells |
| Given Name | Mary Alice |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Wellston |
| 1935 Residence (County) | St. Louis |
| Additional Details | |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | Wellston |
| Est. Birth Year | ~1925 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Nancy Wells | Daughter | — | 3 | ~1937 |
| Rose Wells | Daughter | — | 5 | ~1935 |
| Mary Wells | Daughter | — | 15 | ~1925 |
| William Wells | Head | — | 44 | ~1896 |
| Daniel Wells | Son | — | 4 | ~1936 |
| William Wells | Son | — | 12 | ~1928 |
| Patrick Wells | Son | — | 10 | ~1930 |
| Alice Wells | Spouse | — | 35 | ~1905 |
Census Appearances
Daughter, age 4
St Louis, Missouri · implied b. ~1926 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Welsh |
| Given Name | Mary Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Missouri |
| Can Read/Write | No |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-County, Missouri
Daughter, age 15
St.-Louis-County, Missouri · implied b. ~1925 — 8 household members
| Surname | Wells |
| Given Name | Mary Alice |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Wellston |
| 1935 Residence (County) | St. Louis |
| Highest Grade | Hs 2 |
| 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 Mary Wells across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Wells
Daughter · 1940 · age 15 · b. ~1925 · Missouri
★ You are viewing this record
Sibling
Rose Wells
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patrick Wells
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Wells
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nancy Wells
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Wells
Sibling · 1940 · age 4
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-t0627-02153-00720)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Helen M. Krupper | 49 | Head | Saleslady | Illinois |
| 2 | Ashley H. Paulette | 59 | Head | Maintenance | Georgia |
| 3 | Grace A. H. Paulette | 45 | Wife | — | Missouri |
| 4 | Harold Summers | 43 | Head | Truck Driver | Illinois |
| 5 | Evelyn Summers | 44 | Wife | — | Missouri |
| 6 | Shirley Ann Summers | 20 | Daughter | Comptometer Operator | Missouri |
| 7 | E. Dick Smart | 67 | Head | Lumber Salesman | Kansas |
| 8 | Ralph D. Statler | 39 | Head | Order Man | Missouri |
| 9 | Ona Marie Statler | 29 | Wife | — | Missouri |
| 10 | Joyce Ann Statler | 12 | Daughter | — | Missouri |
| 11 | Mary O. Emerson | 35 | Sister | Waitress | Missouri |
| 12 | Alfred C. Wells | 57 | Head | Clerical Work | Ohio |
| 13 | Sarah Laura Wells | 51 | Sister | — | Ohio |
| 14 | Felix St. Gemme | 65 | Head | Proprietor | Illinois |
| 15 | Julia St. Gemme | 65 | Wife | — | Louisiana |
| 16 | Felix Jr. St. Gemme | 35 | Son | Salesman | Missouri |
| 17 | Ida Fuering | 36 | Daughter | Bookkeeper | Missouri |
| 18 | Marvin F. Fuering | 13 | Grandson | — | Missouri |
| 19 | Henry Schaeffer | 66 | Head | Repairing | Missouri |
| 20 | Rose Schaeffer | 70 | Wife | — | Missouri |
| 21 | Isabel Facendini | 39 | Daughter | Film Mfg Worker | Missouri |
| 22 | Donald Facendini | 11 | Grandson | — | Missouri |
| 23 | Charles Hensic | 27 | Grandson | Truck Driver | Missouri |
| 24 | William Wells | 44 | Head | Inspector | Missouri |
| 25 | Alice Wells | 35 | Wife | — | Missouri |
| 26 | Mary Alice Wells THIS PERSON | 15 | Daughter | — | Missouri |
| 27 | William Wells | 12 | Son | — | Missouri |
| 28 | Patrick Wells | 10 | Son | — | Missouri |
| 29 | Rose Ann Wells | 5 | Daughter | — | Illinois |
| 30 | Daniel Wells | 4 | Son | — | Missouri |
| 31 | Nancy Wells | 3 | Daughter | — | Missouri |
| 32 | Catherine Green | 71 | Head | — | Ohio |
| 33 | Annie Dougherty | 73 | Sister | — | Ohio |
| 34 | Bruce Mcbride | 30 | Lodger | Rotor Balancer | Tennessee |
| 35 | Virginia Mcbride | 22 | Wife | — | Tennessee |
| 36 | Bruce Jr. Mcbride | 3 | Son | — | Missouri |
| 37 | Zora Woods | 52 | Head | Clothes Presser | Indiana |
| 38 | Mollie Bister | 62 | Head | — | Alabama |
| 39 | Fred St. Gemme | 22 | Nephew-in-law | Tinner | Missouri |
| 40 | Frances St. Gemme | 20 | Niece-in-law | Packer | Missouri |
Related Census Records
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)