MD
Mary Dunlap — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Louis-City-County, Missouri
Our Model Tree links this Mary Dunlap across the 1930 and 1940 US Censuses in St.-Louis-City-County, Missouri (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 10-person household.
Age 12
b. ~1928
Female
Daughter
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-City-County, Missouri |
| Surname | Dunlap |
| Given Name | Mary Ann |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St Louis |
| 1935 Residence (County) | St Louis |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | St Louis |
| Est. Birth Year | ~1928 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Catherine Dunlap | Spouse | — | 35 | ~1905 |
| Calmer Dunlap | Head | — | 39 | ~1901 |
| Mary Dunlap | Daughter | — | 12 | ~1928 |
| Catherine Dunlap | Daughter | — | 14 | ~1926 |
| Genevieve Dunlap | Daughter | — | 15 | ~1925 |
| Patricia Dunlap | Daughter | — | 4 | ~1936 |
| Margaret Dunlap | Daughter | — | 1 | ~1939 |
| Anna Dunlap | Other | — | 68 | ~1872 |
| Ethlynne Dunlap | Daughter | — | 10 | ~1930 |
| Calmer Dunlap | Son | — | 6 | ~1934 |
Census Appearances
1930
St Louis, …
Daughter, age 2
St Louis, Missouri · implied b. ~1928 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dunlap |
| Given Name | Mary L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | none |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-City-County, Missouri
Daughter, age 12
St.-Louis-City-County, Missouri · implied b. ~1928 — 10 household members
| Surname | Dunlap |
| Given Name | Mary Ann |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St Louis |
| 1935 Residence (County) | St Louis |
| Highest Grade | No 6 |
| 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 Mary Dunlap across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Dunlap
Daughter · 1940 · age 12 · b. ~1928 · Missouri
★ You are viewing this record
Sibling
Patricia Dunlap
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Dunlap
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ethlynne Dunlap
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Calmer Dunlap
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Genevieve Dunlap
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Dunlap
Sibling · 1940 · age 14
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
40 people indexed on this census page (nara:1940:m-t0627-02206-00009)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Loretta Murphy | 47 | Daughter | Mechanic | Illinois |
| 42 | Oscar A Murphy | 29 | Son | Laborer | Illinois |
| 43 | Thomas H Murphy | 19 | Son | Laborer | Illinois |
| 44 | Arthur W Stenzer | 45 | Head | Laborer | Missouri |
| 45 | Dorothy C Stenzer | 44 | Wife | — | Wyoming |
| 46 | Edward F Stenzer | 23 | Son | Laborer | Missouri |
| 47 | Edna Stenzer | 17 | Daughter | House Work | Missouri |
| 48 | Katherine Stenzer | 15 | Daughter | — | Missouri |
| 49 | Pearl Stenzer | 13 | Daughter | — | Missouri |
| 50 | Arthur Jr Stenzer | 11 | Son | — | Missouri |
| 51 | Henry Stenzer | 6 | Son | — | Missouri |
| 52 | Louis Stenzer | 4 | Son | — | Missouri |
| 53 | Raymond Stenzer | 1 | Son | — | Missouri |
| 54 | F William Stenzer | 49 | Brother | Laborer | Missouri |
| 55 | Thomas Denos | 52 | Head | Dry Cleaning | Greece |
| 56 | Fannie Denos | 37 | Wife | — | Greece |
| 57 | Peter Denos | 13 | Son | — | Missouri |
| 58 | George Denos | 7 | Son | — | Missouri |
| 59 | Bessie Denos | 5 | Daughter | — | Missouri |
| 60 | Mary Denos | 3 | Daughter | — | Missouri |
| 61 | John Sourlos | 40 | Lodger | Washman | Greece |
| 62 | Calmer Dunlap | 39 | Head | Guard | Missouri |
| 63 | Catherine Dunlap | 35 | Wife | — | Missouri |
| 64 | Genevieve Dunlap | 15 | Daughter | — | Missouri |
| 65 | Catherine Dunlap | 14 | Daughter | — | Missouri |
| 66 | Mary Ann Dunlap THIS PERSON | 12 | Daughter | — | Missouri |
| 67 | Ethlynne Dunlap | 10 | Daughter | — | Missouri |
| 68 | Calmer Jr Dunlap | 6 | Son | — | Missouri |
| 69 | Patricia Dunlap | 4 | Daughter | — | Missouri |
| 70 | Margaret Ann Dunlap | 1 | Daughter | — | Missouri |
| 71 | Anna Dunlap | 68 | Lodger | Attendent | Missouri |
| 72 | Vincent Mattera | 37 | Head | Shoe Worker | Italy |
| 73 | Grace Mattera | 35 | Wife | — | Italy |
| 74 | Lucillie Mattera | 13 | Daughter | — | Missouri |
| 75 | Marie Mattera | 11 | Daughter | — | Missouri |
| 76 | Pasqule Mattera | 10 | Son | — | Missouri |
| 77 | Julius Repetto | 56 | Head | Messenger | Missouri |
| 78 | Pearl Repetto | 54 | Wife | Attendent | Illinois |
| 79 | Sebastino Tomarchio | 51 | Head | Laborer | Italy |
| 80 | Pasqula Tomarchio | 43 | Wife | — | Italy |
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)