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Mary Monroe — 1940 US Census Record
Linked across censuses1940 United States Federal Census · District-Of-Columbia-County, District of Columbia
Our Model Tree links this Mary Monroe across the 1930 and 1940 US Censuses in District-Of-Columbia-County, District of Columbia (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 12-person household.
Age 13
b. ~1927
Female
Daughter
Born: District of Columbia
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | District-Of-Columbia-County, District of Columbia |
| Surname | Monroe |
| Given Name | Mary Ellen |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | District of Columbia |
| 1935 Residence (City) | District Of Columbia |
| 1935 Residence (County) | District Of Columbia |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | District of Columbia |
| Birth Country | United States |
| Birthplace (normalized) | district of columbia |
| Est. Birth Year | ~1927 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| William Monroe | Son | — | 16 | ~1924 |
| Audrey Monroe | Other | — | 7 | ~1933 |
| Roland Monroe | Son | — | 6 | ~1934 |
| Mary Monroe | Daughter | — | 13 | ~1927 |
| Thelma Monroe | Daughter | — | 25 | ~1915 |
| Mabel Monroe | Other | — | 5 | ~1935 |
| Warren Monroe | Son | — | 9 | ~1931 |
| Theodore Monroe | Son | — | 10 | ~1930 |
| Dolores Monroe | Other | — | 3 | ~1937 |
| Mary Johnson | Other | — | 67 | ~1873 |
| John Monroe | Head | — | 45 | ~1895 |
| Mabel Monroe | Spouse | — | 43 | ~1897 |
Census Appearances
1930
None, District …
Daughter, age 4
None, District of Columbia · implied b. ~1926 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Munroe |
| Given Name | Mary Ann |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 4 |
| Marital Status | Single |
| Birthplace | District of Columbia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Birth State | District of Columbia |
| Birth Country | United States |
| Birthplace (normalized) | district of columbia |
1940
District-Of-Columbia-County, District …
Daughter, age 13
District-Of-Columbia-County, District of Columbia · implied b. ~1927 — 12 household members
| Surname | Monroe |
| Given Name | Mary Ellen |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | District of Columbia |
| 1935 Residence (City) | District Of Columbia |
| 1935 Residence (County) | District Of Columbia |
| Highest Grade | Hs 4 |
| 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 Mary Monroe across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Monroe
Daughter · 1940 · age 13 · b. ~1927 · District of Columbia
★ You are viewing this record
Sibling
Roland Monroe
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Warren Monroe
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thelma Monroe
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theodore Monroe
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Monroe
Sibling · 1940 · age 16
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 — District-Of-Columbia-County, District of Columbia
Open full size
1940 US Federal Census — District-Of-Columbia-County, District of Columbia
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00554-00498)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Naomi Goodall | 14 | daughter | — | Virginia |
| 42 | John Goodall | 14 | son | — | Virginia |
| 43 | Pearl Lewis | 23 | lodger | Maid | Virginia |
| 44 | Ethel Mealy | 25 | lodger | Maid | Virginia |
| 45 | Robert Stribling | 46 | lodger | Assistant Printer | West Virginia |
| 46 | Hester Stribling | 42 | lodger | — | West Virginia |
| 47 | Ethel Reed | 30 | lodger | Servant | Maryland |
| 48 | Roscoe C. Mason | 50 | head | Barber | Virginia |
| 49 | Frances Mason | 47 | wife | — | North Carolina |
| 50 | John Johnson | 28 | lodger | Houseman | North Carolina |
| 51 | Eugene O. Prather | 50 | head | Mail Carrier | Maryland |
| 52 | Effie P. Prather | 50 | wife | — | Maryland |
| 53 | Thomas Creek | 55 | head | Laborer | District of Columbia |
| 54 | Charlotte Creek | 57 | wife | Servant | Virginia |
| 55 | Thomas Jr. Creek | 38 | son | Roofer | District of Columbia |
| 56 | Margie Creek | 37 | daughter | Maid | District of Columbia |
| 58 | Ruby Norton | 35 | head | Unskill Labor | Virginia |
| 59 | Otis J. Norton | 18 | son | News Worker | Virginia |
| 60 | June Norton | 15 | daughter | — | Virginia |
| 61 | Eldridge White | 29 | lodger | Delivery Boy | Maryland |
| 62 | Henrietta Spencer | 99 | lodger | Laundry | Virginia |
| 63 | John Webster | 30 | head | Laborer | South Carolina |
| 64 | Ganathan Webster | 29 | wife | — | South Carolina |
| 65 | Jonnie May Webster | 6 | daughter | — | District of Columbia |
| 66 | John Monroe | 45 | head | Cook | Maryland |
| 67 | Mabel Monroe | 43 | wife | — | District of Columbia |
| 68 | Thelma Monroe | 25 | daughter | Maid | District of Columbia |
| 69 | William Monroe | 16 | son | — | District of Columbia |
| 70 | Mary Ellen Monroe THIS PERSON | 13 | daughter | — | District of Columbia |
| 71 | Theodore Monroe | 10 | son | — | District of Columbia |
| 72 | Warren Monroe | 9 | son | — | District of Columbia |
| 73 | Roland Monroe | 6 | son | — | District of Columbia |
| 74 | Audrey Monroe | 7 | granddaughter | — | District of Columbia |
| 75 | Mabel Monroe | 5 | granddaughter | — | District of Columbia |
| 76 | Dolores Monroe | 3 | granddaughter | — | District of Columbia |
| 77 | Mary Johnson | 67 | mother-in-law | — | District of Columbia |
| 78 | Morris Pulley | 43 | head | Houseman | North Carolina |
| 79 | Florence Pulley | 34 | wife | — | North Carolina |
| 80 | Morris Jr. Pulley | 17 | son | Messenger | North Carolina |
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)