MC
Margaret Cunningham — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Louis-County, Missouri
Our Model Tree links this Margaret Cunningham across the 1920, 1930 and 1940 US Censuses in St.-Louis-County, Missouri (XGBoost, ~Confirmed), with identified parents Maude & Furman — first a daughter (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Female
Daughter
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-County, Missouri |
| Surname | Cunningham |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Maplewood City |
| 1935 Residence (County) | St. Louis |
| Additional Details | |
| Occupation | SALES CLERK |
| Industry | DEPARTMENT STORE |
| Class of Worker | PW |
| Hours Worked | 26 |
| Income (1939) | 370 |
| Highest Grade | C 3 |
| 1935 Residence | Same House |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Sales Clerk |
| Township / Ward | Maplewood City |
| Est. Birth Year | ~1918 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Cunningham | Daughter | — | 22 | ~1918 |
| Firmin Cunningham | Head | — | 52 | ~1888 |
| Robert Cunningham | Son | — | 17 | ~1923 |
| Maud Cunningham | Spouse | — | 50 | ~1890 |
Census Appearances
1920
St Louis, …
Daughter, age 1
St Louis, Missouri · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cunningham |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
St Louis, …
Daughter, age 12
St Louis, Missouri · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cunningham |
| Given Name | Margaret L. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-County, Missouri
Daughter, age 22
St.-Louis-County, Missouri · implied b. ~1918 — 4 household members
| Surname | Cunningham |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Maplewood City |
| 1935 Residence (County) | St. Louis |
| Occupation | SALES CLERK |
| Industry | DEPARTMENT STORE |
| Class of Worker | PW |
| Hours Worked | 26 |
| Income (1939) | 370 |
| Highest Grade | C 3 |
| 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 Margaret Cunningham across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Maude Cunningham (~0.92 confidence) and father Furman Cunningham (~0.92 confidence) and father Irwin Cunningham (~0.92 confidence) and mother Maud Cunningham (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Maude Cunningham
b. ~1887
Source mother
● Household
· direct · ~0.92
Father
Furman Cunningham
b. ~1888
Source father
● Household
· direct · ~0.92
Father
Irwin Cunningham
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Maud Cunningham
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Cunningham
Daughter · 1940 · age 22 · b. ~1918 · Missouri
★ You are viewing this record
Sibling
Robert Cunningham
Sibling · 1940 · age 17
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
9 people indexed on this census page (nara:1940:m-t0627-02150-00586)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Charles E. Conley | 56 | Lodger | Machinist | Texas |
| 42 | Frank Fordon | 39 | Lodger | Carpenter | North Dakota |
| 45 | Firmin Cunningham | 52 | Head | Electrical Engineer | Missouri |
| 46 | Maud Cunningham | 50 | Wife | — | Missouri |
| 47 | Margaret Cunningham THIS PERSON | 22 | Daughter | Sales Clerk | Missouri |
| 48 | Robert Cunningham | 17 | Son | — | Missouri |
| 49 | Josiah Smith | 66 | Head | — | England |
| 50 | Cordelia Smith | 67 | Wife | — | England |
| 51 | Richard James Howard | 49 | Head | Barbering | Missouri |
Search for Margaret Cunningham
All Margaret Cunningham Census Records Discover Cunningham Family TreePedigree Summary
Margaret + 1 sibling
Gen 1 · 4 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)