MC
Margaret Carroll — 1940 US Census Record
Linked across censuses1940 United States Federal Census · District-Of-Columbia-County, District of Columbia
Our Model Tree links this Margaret Carroll across the 1920, 1930 and 1940 US Censuses in District-Of-Columbia-County, District of Columbia (XGBoost, ~Confirmed) — first a spouse (b.~1898), then head of a 5-person household.
Age 42
b. ~1898
Female
Spouse
Born: District of Columbia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | District-Of-Columbia-County, District of Columbia |
| Surname | Carroll |
| Given Name | Margaret B. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | District of Columbia |
| 1935 Residence (City) | Washington |
| 1935 Residence (County) | District Of Columbia |
| Additional Details | |
| Highest Grade | H 7 |
| 1935 Residence | Same House |
| Birth State | District of Columbia |
| Birth Country | United States |
| Birthplace (normalized) | district of columbia |
| Township / Ward | Washington |
| Est. Birth Year | ~1898 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| John Carroll | Son | — | 18 | ~1922 |
| Raymond Carroll | Head | — | 47 | ~1893 |
| Margaret Carroll | Spouse | — | 42 | ~1898 |
| James Carroll | Son | — | 23 | ~1917 |
| Alice Carroll | Daughter | — | 21 | ~1919 |
Census Appearances
1920
None, District …
Other, age 21
None, District of Columbia · implied b. ~1899 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carroll |
| Given Name | Mary L. |
| Relationship to Head | Daughter-in-law |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Married |
| Birthplace | District of Columbia |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Accountant |
| Industry | Navy Dept. |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | District of Columbia |
| Birth Country | United States |
| Birthplace (normalized) | district of columbia |
1930
None, District …
Other, age 31
None, District of Columbia · implied b. ~1899 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carroll |
| Given Name | Mary H. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | District of Columbia |
| Age at First Marriage | 17 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Virginia |
| Can Read/Write | Yes |
| Birth State | District of Columbia |
| Birth Country | United States |
| Birthplace (normalized) | district of columbia |
1940
District-Of-Columbia-County, District …
Spouse, age 42
District-Of-Columbia-County, District of Columbia · implied b. ~1898 — 5 household members
| Surname | Carroll |
| Given Name | Margaret B. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | District of Columbia |
| 1935 Residence (City) | Washington |
| 1935 Residence (County) | District Of Columbia |
| Highest Grade | H 7 |
| 1935 Residence | Same House |
| Birth State | District of Columbia |
| Birth Country | United States |
| Birthplace (normalized) | district of columbia |
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 Carroll across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Margaret Carroll
Spouse · 1940 · age 42 · b. ~1898 · 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
Open full size
1940 US Federal Census — District-Of-Columbia-County, District of Columbia
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-00561-00832)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Leland Hendricks | 52 | Head | Cabinet Maker | District of Columbia |
| 42 | Alice Hendricks | 52 | Wife | Secretary | Maryland |
| 43 | Doris Hendricks | 19 | Daughter | — | District of Columbia |
| 44 | Richard Hendricks | 17 | Son | — | Maryland |
| 45 | Alice Wills | 24 | Daughter | Draftsman | Maryland |
| 46 | Ronald Wills | 1 | Son | — | Maryland |
| 47 | Raymond B. Carroll | 47 | Head | Clerk | New York |
| 48 | Margaret B. Carroll THIS PERSON | 42 | Wife | — | District of Columbia |
| 49 | James H. Carroll | 23 | Son | Clerk | District of Columbia |
| 50 | Alice M. Carroll | 21 | Daughter | Clerk | District of Columbia |
| 51 | John H. Carroll | 18 | Son | Messenger | District of Columbia |
| 52 | John J. Purvis | 36 | Head | Policeman | Virginia |
| 53 | Mary E. Purvis | 36 | Wife | — | Pennsylvania |
| 54 | Eva J. Purvis | 7 | Daughter | — | Virginia |
| 55 | Ruby L. Purvis | 5 | Daughter | — | Virginia |
| 56 | Frank W. Bright | 45 | Head | Printer | West Virginia |
| 57 | Nellie J. Bright | 45 | Wife | — | Maryland |
| 58 | Anna S. Bright | 24 | Daughter | School Teacher | West Virginia |
| 59 | Frank W. Jr. Bright | 23 | Son | New Worker | West Virginia |
| 60 | George C. Bright | 21 | Son | New Worker | West Virginia |
| 61 | Donald M. Bright | 19 | Son | New Worker | West Virginia |
| 62 | Howard F. Bright | 17 | Son | — | West Virginia |
| 64 | W. Preston Williams | 43 | Head | Dealer | Maryland |
| 65 | Eliza J. Williams | 37 | Wife | — | Maryland |
| 66 | John C. Williams | 12 | Daughter | — | District of Columbia |
| 67 | Anne W. Williams | 6 | Daughter | — | District of Columbia |
| 69 | Herbert G. White | 52 | Head | Butler Valet | England |
| 70 | Gladys C. White | 42 | Wife | — | New York |
| 71 | Donald White | 18 | Son | Messenger | Massachusetts |
| 72 | Reginald J. White | 15 | Son | — | Pennsylvania |
| 73 | Barbara White | 13 | Daughter | — | District of Columbia |
| 74 | Thomas E. Mcdermott | 48 | Head | Compositor | Ohio |
| 75 | Leanne J. Mcdermott | 41 | Wife | — | Maryland |
| 76 | Eli J. Oakley | 41 | Head | Pattern Maker | Colorado |
| 77 | Muriel S. Oakley | 40 | Wife | — | Kansas |
| 78 | Velma L. Oakley | 14 | Daughter | — | Colorado |
| 79 | Billy B. Oakley | 9 | Son | — | Colorado |
| 80 | Frank E. Stroman | 40 | Head | Policeman | District of Columbia |
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)