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Mary Blair — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Dallas-County, Texas

Our Model Tree links this Mary Blair across the 1930 and 1940 US Censuses in Dallas-County, Texas (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 9-person household.

Age 16 b. ~1924 Female Daughter Born: Texas Single

1940 Census Record Details

Census Year1940
LocationDallas-County, Texas
SurnameBlair
Given NameMary
Relationship to HeadDaughter
SexF
Color / RaceWhite
Age16
Marital StatusSingle
BirthplaceTexas
1935 Residence (City)Dallas City
1935 Residence (County)Dallas
Additional Details
Income (1939)0
Highest GradeHs 2
1935 ResidenceTexas
Birth StateTexas
Birth CountryUnited States
Birthplace (normalized)texas
Township / WardDallas City
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.

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

Name Relation to head Relative to Mary Age Birth yr
Mary Blair Daughter — 16 ~1924
Riley Horton Daughter — 24 ~1916
Joan Blair Daughter — 10 ~1930
Edna Blair Head — 47 ~1893
Lizzie Hunt Other — 68 ~1872
Billy Blair Son — 8 ~1932
Arthur Blair Son — 14 ~1926
Charles Blair Son — 12 ~1928
J Blair Son — 13 ~1927

Census Appearances

1930
Dallas, Texas
Daughter, age 5
Dallas, Texas · implied b. ~1925 — 5 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Blair
Given Name Margaret
Relationship to Head Daughter
Sex F
Color / Race White
Age 5
Marital Status Single
Birthplace Texas
Father's Birthplace Tennessee
Mother's Birthplace Tennessee
Birth State Texas
Birth Country United States
Birthplace (normalized) texas
1940
Dallas-County, Texas
Daughter, age 16
Dallas-County, Texas · implied b. ~1924 — 9 household members
Surname Blair
Given Name Mary
Relationship to Head Daughter
Sex F
Color / Race White
Age 16
Marital Status Single
Birthplace Texas
1935 Residence (City) Dallas City
1935 Residence (County) Dallas
Income (1939) 0
Highest Grade Hs 2
1935 Residence Texas
Birth State Texas
Birth Country United States
Birthplace (normalized) texas

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 Blair across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Blair
Daughter · 1940 · age 16 · b. ~1924 · Texas
★ You are viewing this record
Sibling
Joan Blair
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Blair
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Blair
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Riley Horton
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Billy Blair
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
J Blair
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 — Dallas-County, Texas Open full size

Page Contents

39 people indexed on this census page (nara:1940:m-t0627-04177-00819)

Line Name Age Relation Occupation Birthplace
1 Maggie M. Hines 66 Mother — Mississippi
2 William Woods 32 Head Foreman Mississippi
3 Opal Woods 20 Wife — New Mexico
4 Patsy Woods 2 Daughter — Texas
5 Samuel D. Harrison 48 Head Painter Texas
6 Virgie Harrison 40 Wife — Texas
7 Samuel Harrison 18 Son — Texas
8 Edna Blair 47 Head Seamstress Texas
9 Mary Blair THIS PERSON 16 Daughter — Texas
10 Arthur R. Blair 14 Son — Texas
11 J. C. Blair 13 Son — Texas
12 Charles A. Blair 12 Son — Texas
13 Joan Blair 10 Daughter — Texas
14 Billy W. Blair 8 Son — Texas
15 Riley Horton 24 Daughter Waitress Oklahoma
16 Lizzie Hunt 68 Mother — Kentucky
17 Joseph L. Allgood 50 Head Policeman S. Carolina
18 Agnes Allgood 42 Wife — Texas
19 E. A. Halmark 45 Head Repair Radiators Texas
20 Minnie Halmark 43 Wife — Texas
21 George Jr. Halmark 20 Son Apprentice Repair Texas
22 Helen Halmark 15 Daughter — Texas
23 Melvin Halmark 12 Son — Texas
24 Cosette Halmark 8 Daughter — Texas
25 Isaac G. Johnson 36 Head Washer Arkansas
26 Parthenia Johnson 33 Wife Barber Texas
27 Zidra Ann Johnson 2 Daughter — Texas
28 Albina Johnson 56 Father Red Cap Texas
29 Emila Johnson 56 Mother — Texas
30 Nelson Fields 25 Lodger Red Cap Texas
31 Sammie Cole 35 Head Elevator Operator Texas
32 Myra E. Cole 35 Wife Housemaid Texas
33 Sarah Patterson 70 Mother-in-law — Texas
34 Garfield Patterson 30 Brother-in-law Porter Texas
35 Ulysses An-Apee 40 Head Chauffeur Texas
36 Mary An-Apee 40 Wife Housemaid Texas
37 Sammy Lewis 58 Nephew Laundress Texas
38 Fred Mayfield 40 Head Yardman Texas
39 Annie Mayfield 37 Wife Housemaid Texas

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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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