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Alice Armstrong — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · St.-Mary'S-County, Maryland

Our Model Tree links this Alice Armstrong across the 1930 and 1940 US Censuses in St.-Mary'S-County, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 7-person household.

Age 19 b. ~1921 Female Daughter Born: Maryland Single

1940 Census Record Details

Census Year1940
LocationSt.-Mary'S-County, Maryland
SurnameArmstrong
Given NameAlice
Relationship to HeadDaughter
SexF
Color / RaceBlack
Age19
Marital StatusSingle
BirthplaceMaryland
1935 Residence (City)Milestown
1935 Residence (County)St Marys
Additional Details
OccupationServant
IndustryPrivate Home
Class of WorkerPW
Hours Worked50
Income (1939)520
Highest Grade7
1935 ResidenceSame place
Birth StateMaryland
Birth CountryUnited States
Birthplace (normalized)maryland
OccupationServant
Township / WardMilestown
Est. Birth Year~1921

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.

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

Name Relation to head Relative to Alice Age Birth yr
Mary Armstrong Daughter — 13 ~1927
Gertrude Armstrong Daughter — 9 ~1931
George Armstrong Son — 14 ~1926
Raymond Armstrong Son — 16 ~1924
Raymond Armstrong Head — 40 ~1900
Mary Armstrong Spouse — 33 ~1907
Alice Armstrong Daughter — 19 ~1921

Census Appearances

1930
St Marys, …
Daughter, age 8
St Marys, Maryland · implied b. ~1922 — 4 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Armstrong
Given Name Alice E
Relationship to Head Daughter
Sex F
Color / Race White
Age 8
Marital Status Single
Birthplace Maryland
Father's Birthplace Maryland
Mother's Birthplace Maryland
Birth State Maryland
Birth Country United States
Birthplace (normalized) maryland
1940
St.-Mary'S-County, Maryland
Daughter, age 19
St.-Mary'S-County, Maryland · implied b. ~1921 — 7 household members
Surname Armstrong
Given Name Alice
Relationship to Head Daughter
Sex F
Color / Race Black
Age 19
Marital Status Single
Birthplace Maryland
1935 Residence (City) Milestown
1935 Residence (County) St Marys
Occupation Servant
Industry Private Home
Class of Worker PW
Hours Worked 50
Income (1939) 520
Highest Grade 7
1935 Residence Same place
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.
Linked across censuses
Our Model Tree links Alice Armstrong across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Alice Armstrong
Daughter · 1940 · age 19 · b. ~1921 · Maryland
★ You are viewing this record
Sibling
Gertrude Armstrong
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Armstrong
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Armstrong
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Armstrong
Sibling · 1940 · age 13
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.-Mary'S-County, Maryland Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01559-00778)

Line Name Age Relation Occupation Birthplace
41 William Williams 12 Son — Maryland
42 Ann Williams 11 Daughter — Maryland
43 Thomas Williams 81 Father — Maryland
44 Joseph W. Mattingly 79 Head — Maryland
45 Left By Mistake Mattingly None left by mistake — —
46 Edgar Shotwell 45 Head Farming North Carolina
47 Lillie M. Shotwell 44 Wife — Virginia
48 Alfred Shotwell 17 Son — North Carolina
49 Marvin Shotwell 15 Son — North Carolina
50 Frank Shotwell 12 Son — North Carolina
51 Clyde Shotwell 21 Son Farming North Carolina
52 Loraine Shotwell 24 Daughter — Virginia
53 Jessie Knott 50 Head Laborer Maryland
54 Kathleen Knott 49 Wife — Maryland
55 Berlin Oliver 40 Head Mail Carrier Maryland
56 Julia Oliver 32 Wife — Maryland
57 James Oliver 12 Son — Maryland
58 John A. Oliver 10 Son — Maryland
59 Joseph C. Oliver 9 Son — Maryland
60 Robert Oliver 7 Son — Maryland
61 Bernard Oliver 5 Son — Maryland
62 Edmund Plowden 42 Head Mate Maryland
63 Frederick Moore 39 Head Proprietor Mississippi
64 Sylvia Moore 31 Wife — Washington
65 Mary Moore 3 Daughter — D.C.
66 Elizabeth Moore 0 Daughter — D.C.
67 Robert Cromwell 12 Step-son — D.C.
68 John D. Carter 65 Head Servant Maryland
69 Mary A. Carter 30 Wife Servant Maryland
70 Erica Jones 17 Lodger Servant Maryland
71 Raymond Armstrong 40 Head Helper Maryland
72 Mary Armstrong 33 Wife — Maryland
73 Alice Armstrong THIS PERSON 19 Daughter Servant Maryland
74 Raymond Armstrong 16 Son — Maryland
75 George Armstrong 14 Son — Maryland
76 Mary Armstrong 13 Daughter — Maryland
77 Gertrude Armstrong 9 Daughter — Maryland
78 Julius Johnson 45 Head Agent Maryland
79 Lillian M. Johnson 44 Wife — Maryland
80 Leonard Johnson 17 Son — Maryland

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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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