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Mary Mills — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · District-Of-Columbia-County, District of Columbia

Our Model Tree links this Mary Mills across the 1930 and 1940 US Censuses in District-Of-Columbia-County, District of Columbia (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 13-person household.

Age 16 b. ~1924 Female Daughter Born: Dist. of Col. Single

1940 Census Record Details

Census Year1940
LocationDistrict-Of-Columbia-County, District of Columbia
SurnameMills
Given NameMary
Relationship to Headdaughter
SexF
Color / RaceBlack
Age16
Marital StatusSingle
BirthplaceDist. of Col.
1935 Residence (City)Washington
1935 Residence (County)District Of Columbia
Additional Details
OccupationNew Worker
Class of Worker0
Highest GradeNo H1
1935 ResidenceSame place
Birthplace (normalized)dist of col
OccupationNew Worker
Township / WardWashington
Est. Birth Year~1924

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.

13 people recorded at the same address in the 1940 census.

Name Relation to head Relative to Mary Age Birth yr
Alice Mills Daughter — 19 ~1921
Grace Mills Daughter — 27 ~1913
Beatrice Nelson Daughter — 21 ~1919
Rosina Mills Daughter — 8 ~1932
Mary Mills Daughter — 16 ~1924
Jessie Mills Head — 46 ~1894
John Nelson Other — 3 ~1937
George Mills Other — 2 ~1938
Robert Henson Other — 50 ~1890
Samuel Mills Son — 11 ~1929
Jessie Mills Son — 14 ~1926
Thomas Mills Son — 25 ~1915
Estelle Mills Spouse — 46 ~1894

Census Appearances

1930
None, District …
Daughter, age 7
None, District of Columbia · implied b. ~1923 — 4 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Mills
Given Name Margaret F
Relationship to Head Daughter
Sex F
Color / Race White
Age 7
Marital Status Single
Birthplace Dist of Col
Father's Birthplace Dist of Col
Mother's Birthplace Dist of Col
Can Read/Write Yes
Birthplace (normalized) dist of col
1940
District-Of-Columbia-County, District …
Daughter, age 16
District-Of-Columbia-County, District of Columbia · implied b. ~1924 — 13 household members
Surname Mills
Given Name Mary
Relationship to Head daughter
Sex F
Color / Race Black
Age 16
Marital Status Single
Birthplace Dist. of Col.
1935 Residence (City) Washington
1935 Residence (County) District Of Columbia
Occupation New Worker
Class of Worker 0
Highest Grade No H1
1935 Residence Same place
Birthplace (normalized) dist of col

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.
Linked across censuses
Our Model Tree links Mary Mills across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mills
Daughter · 1940 · age 16 · b. ~1924 · District of Columbia
★ You are viewing this record
Sibling
Beatrice Nelson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jessie Mills
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Mills
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Mills
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rosina Mills
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Samuel Mills
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Grace Mills
Sibling · 1940 · age 27
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

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-00568-00357)

Line Name Age Relation Occupation Birthplace
41 Ruth White 1 daughter Same Place Dist. of Col.
42 Jessie Mills 46 Head Janitor Maryland
43 Estelle Mills 46 wife — Maryland
44 Alice Mills 19 daughter New Worker Maryland
45 Mary Mills THIS PERSON 16 daughter New Worker Dist. of Col.
46 Jessie Mills 14 son — Dist. of Col.
47 Samuel Mills 11 son — Dist. of Col.
48 Rosina Mills 8 daughter — Dist. of Col.
49 Thomas Mills 25 son Janitor Maryland
50 Grace Mills 27 Daughter — Dist. of Col.
51 Beatrice Nelson 21 daughter Seamstress Dist. of Col.
52 John Nelson 3 Grandson — Dist. of Col.
53 George Mills 2 Grandson — Dist. of Col.
54 Robert Henson 50 Brother Laborer Maryland
55 Julia Lawson 42 Head — Virginia
56 Irving Payne 49 Head — South Carolina
57 Lelia Payne 40 wife Domestic South Carolina
58 Ida Lou Payne 17 daughter — North Carolina
59 Ida Lee 55 Mother — South Carolina
60 Charlie Davis 41 Head Laborer South Carolina
61 Marie Davis 35 wife — South Carolina
62 Joseph Davis 19 son Laborer North Carolina
63 James Davis 14 son — Dist. of Col.
64 Jessie Davis 12 son — Dist. of Col.
65 Richard Davis 11 son — Dist. of Col.
66 Rachel M. Davis 9 daughter — Dist. of Col.
67 Helen Davis 7 daughter — Dist. of Col.
68 Elizabeth Davis 5 daughter — Dist. of Col.
69 Wilhelmina Davis 3 daughter — Dist. of Col.
70 Leo Jones 33 Head Laborer South Carolina
71 Zatherene Jones 33 wife — South Carolina
72 Iola Jones 9 daughter — South Carolina
73 Claude Jones 8 son — South Carolina
74 Thea Jones 6 son — South Carolina
75 Dorothy Jones 4 daughter — Dist. of Col.
76 George Jones 3 son — Dist. of Col.
77 Shirley Jones 1 daughter — Dist. of Col.
78 Frank Harley 26 Head Check Boy Georgia
79 Mary E. Harley 26 wife — South Carolina
80 Oscar Reed 39 Head Laborer Virginia

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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)

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