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Mary Middleton — 1940 US Census Record
Linked across censuses1940 United States Federal Census · District-Of-Columbia-County, District of Columbia
Our Model Tree links this Mary Middleton across the 1920, 1930 and 1940 US Censuses in District-Of-Columbia-County, District of Columbia (XGBoost, ~Confirmed) — first a head (b.~1888), then head of a 5-person household.
Age 52
b. ~1888
Female
Head
Born: Maryland
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | District-Of-Columbia-County, District of Columbia |
| Surname | Middleton |
| Given Name | Mary E. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Widowed |
| Birthplace | Maryland |
| 1935 Residence (City) | Washington |
| 1935 Residence (County) | District Of Columbia |
| Additional Details | |
| Occupation | Assistant |
| Industry | Agriculture Dept. |
| Class of Worker | GW |
| Hours Worked | 55 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Assistant |
| Township / Ward | Washington |
| Est. Birth Year | ~1888 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Middleton | Daughter | — | 10 | ~1930 |
| Margaret Middleton | Daughter | — | 17 | ~1923 |
| James Middleton | Son | — | 18 | ~1922 |
| Mary Middleton | Head | — | 52 | ~1888 |
| Patricia Middleton | Daughter | — | 15 | ~1925 |
Census Appearances
1920
Charles, Maryland
Other, age 31
Charles, Maryland · implied b. ~1889 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Middleton |
| Given Name | Mary |
| Sex | F |
| Color / Race | Black |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Housekeeper |
| Industry | Working for family |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
None, District …
Spouse, age 42
None, District of Columbia · implied b. ~1888 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Middleton |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 21 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
District-Of-Columbia-County, District …
Head, age 52
District-Of-Columbia-County, District of Columbia · implied b. ~1888 — 5 household members
| Surname | Middleton |
| Given Name | Mary E. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Widowed |
| Birthplace | Maryland |
| 1935 Residence (City) | Washington |
| 1935 Residence (County) | District Of Columbia |
| Occupation | Assistant |
| Industry | Agriculture Dept. |
| Class of Worker | GW |
| Hours Worked | 55 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 Middleton across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Middleton
Head · 1940 · age 52 · b. ~1888 · District of Columbia
★ 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 — District-Of-Columbia-County, District of Columbia
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1940 US Federal Census — District-Of-Columbia-County, District of Columbia
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00569-00978)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles W. Atwell | 6 | Son | — | D.C. |
| 3 | John H. O'Connell | 43 | Head | Safety Consultant | D.C. |
| 4 | Harry A. O'Connell | 39 | Brother | Clerk | D.C. |
| 5 | Mary Ann O'Connell | 11 | Daughter | — | D.C. |
| 6 | Mary Darling | 67 | Mother-in-law | — | Pennsylvania |
| 7 | Albert J. Focht | 64 | Head | Clerk | Pennsylvania |
| 8 | Marie E. Focht | 36 | Daughter | Kindergarten Teacher | Pennsylvania |
| 9 | Goldie Derrickson | 55 | Housekeeper | Housekeeper | Indiana |
| 10 | Chester A. Allen | 21 | Head | Sales Clerk | Pennsylvania |
| 11 | Thelma L. Allen | 18 | Wife | — | D.C. |
| 12 | Nancy Lee Allen | 1 | Daughter | — | D.C. |
| 13 | Alice Crowe | 31 | Head | Sales Maker | Virginia |
| 14 | Paul R. Watkins | 42 | Head | Owner | Maryland |
| 15 | Louise H. Watkins | 43 | Wife | — | Maryland |
| 16 | Marion K. Watkins | 11 | Daughter | — | D.C. |
| 17 | Mary A. Diggins | 74 | Mother-in-law | — | Maryland |
| 18 | Henry L. Paynton | 73 | Head | — | Pennsylvania |
| 19 | Ida C. Paynton | 71 | Wife | — | Virginia |
| 20 | Harry B. Paynton | 44 | Son | Telephone Installer | Maryland |
| 21 | Edward M. Schultz | 41 | Lodger | Warehouse Manager | New York |
| 22 | John A. Brinker | 73 | Head | Keeper Ranger | Virginia |
| 23 | Margaret L. Brinker | 71 | Wife | — | Virginia |
| 24 | Frank C. Brinker | 69 | Brother | Keeper Ranger | Virginia |
| 25 | Mary E. O'Brien | 67 | Sister | — | Virginia |
| 26 | Luther O. Frank | 45 | Head | Salesman | D.C. |
| 27 | Ruth L. Frank | 43 | Wife | — | Virginia |
| 28 | James A. Frank | 20 | Son | — | D.C. |
| 29 | Mary Ellen Frank | 16 | Daughter | — | D.C. |
| 30 | Millard F. Garland | 25 | Son-in-law | Car Cleaner | Tennessee |
| 31 | Dorothy L. Garland | 22 | Daughter | — | D.C. |
| 32 | Millard F. Jr. Garland | 0 | Grandson | — | D.C. |
| 33 | Benjamin Goodwin | 38 | Uncle | Clerk | Virginia |
| 34 | Eva M. Hopkins | 73 | Head | — | D.C. |
| 35 | Mary E. Middleton THIS PERSON | 52 | Head | Assistant | Maryland |
| 36 | James A. Middleton | 18 | Son | New Worker | Maryland |
| 37 | Margaret H. Middleton | 17 | Daughter | — | Maryland |
| 38 | Patricia M. Middleton | 15 | Daughter | — | Maryland |
| 39 | Mary Ellen Middleton | 10 | Daughter | — | D.C. |
| 40 | Mary W. Growden | 40 | Head | — | Tennessee |
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)