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Mary Alexander — 1930 US Census Record

Model Tree available

1930 United States Federal Census · Camden, New Jersey

Our Model Tree links this Mary Alexander across the 1910, 1920 and 1930 US Censuses in Camden, New Jersey (XGBoost, ~Confirmed), with identified parents Edith & Joseph — first a daughter (b.~1907), then head of a 11-person household.

Age 23 b. ~1907 Female Daughter Born: New Jersey Single

1930 Census Record Details

Census Year1930
LocationCamden, New Jersey
SurnameAlexander
Given NameMary
Relationship to HeadDaughter
SexF
Color / RaceWhite
Age23
Marital StatusSingle
BirthplaceNew Jersey
Father's BirthplacePennsylvania
Mother's BirthplaceNew Jersey
Additional Details
Occupationpaper cutter
IndustryPaper Mill
Class of WorkerW
Can Read/WriteYes
Birth StateNew Jersey
Birth CountryUnited States
Birthplace (normalized)new jersey
OccupationPaper Cutter
Township / WardGloucester City
Est. Birth Year~1907

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.

11 people recorded at the same address in the 1930 census.

Name Relation to head Relative to Mary Age Birth yr
Mary Alexander Daughter — 23 ~1907
Edith Robb Daughter — 25 ~1905
Margaret Alexander Daughter — 18 ~1912
Emily Alexander Daughter — 14 ~1916
Joseph Alexander Head — 49 ~1881
Edward Robb Other — 30 ~1900
Marion Robb Other — 1 ~1929
Edith Alexander Other — 49 ~1881
Robert Robb Other — ~1930
John Alexander Son — 8 ~1922
Charles Alexander Son — 10 ~1920

Census Appearances

1910
Camden, New …
Daughter, age 4
Camden, New Jersey · implied b. ~1906 — 7 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Alexander
Given Name Mamie
Relationship to Head daughter
Sex F
Color / Race White
Age 4
Marital Status Single
Birthplace New Jersey
Father's Birthplace Pennsylvania
Mother's Birthplace New Jersey
Occupation none
Birth State New Jersey
Birth Country United States
Birthplace (normalized) new jersey
1920
Camden, New …
Daughter, age 13
Camden, New Jersey · implied b. ~1907 — 11 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Alexander
Given Name Mary
Relationship to Head Daughter
Sex F
Color / Race White
Age 13
Marital Status Single
Birthplace New Jersey
Father's Birthplace Pennsylvania
Mother's Birthplace New Jersey
Can Read Yes
Can Write Yes
Speaks English Yes
Birth State New Jersey
Birth Country United States
Birthplace (normalized) new jersey
1930
Camden, New …
Daughter, age 23
Camden, New Jersey · implied b. ~1907 — 11 household members
Surname Alexander
Given Name Mary
Relationship to Head Daughter
Sex F
Color / Race White
Age 23
Marital Status Single
Birthplace New Jersey
Father's Birthplace Pennsylvania
Mother's Birthplace New Jersey
Occupation paper cutter
Industry Paper Mill
Class of Worker W
Can Read/Write Yes
Birth State New Jersey
Birth Country United States
Birthplace (normalized) new jersey

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.
Model Tree available
Our Model Tree links Mary Alexander across 3 US Census years (1910, 1920 and 1930) in Camden, New Jersey, using XGBoost record linkage. Identified parents: mother Edith Alexander (~0.92 confidence) and father Joseph Alexander (~0.92 confidence) and mother Edith Alexander (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1 Parents confidence ≈ 0.92
Mother
Edith Alexander
b. ~1871
Source mother
● Household · direct · ~0.92
Father
Joseph Alexander
b. ~1881
Source father
● Household · direct · ~0.92
Mother
Edith Alexander
b. ~1881
Source mother
● Household · direct · ~0.92
This person
Anchor record
Mary Alexander
Daughter · 1930 · age 23 · b. ~1907 · New Jersey
★ You are viewing this record
Sibling
Charles Alexander
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Emily Alexander
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Alexander
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edith Robb
Sibling · 1930 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Alexander
Sibling · 1930 · age 8
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

1930 US Federal Census — Camden, New Jersey Open full size

Page Contents

48 people indexed on this census page (ia:1930:newjerseycensus00reel1323:0829)

Line Name Age Relation Occupation Birthplace
51 John Breaker 37 Head Ice Maker North Ireland
52 Helen Breaker 33 Wife-H None Germany
53 John Breaker 3 Son None Pennsylvania
54 Thomas Breaker 1 Son None New Jersey
55 Barbara Mertz 67 Head None Germany
56 William A Mertz 22 Son Machinist New Jersey
57 Albert Nickerson 32 Head Pressman Pennsylvania
58 Helen Nickerson 27 Wife-H None Pennsylvania
59 Joseph Nickerson 6 Son None New Jersey
60 Alberta Nickerson 5 Daughter None New Jersey
61 Helen Nickerson 4 Daughter None New Jersey
62 Edith Nickerson 1 Daughter None New Jersey
63 Joseph Alexander 49 Head Beater Pennsylvania
64 Edith Alexander 49 Wife-H None New Jersey
65 Margaret Alexander 18 Daughter None New Jersey
66 Emily Alexander 14 Daughter None New Jersey
67 Charles Alexander 10 Son None New Jersey
68 John Alexander 8 Son None New Jersey
69 Edward Robb 30 Son-in-law Riveter Helper Pennsylvania
70 Edith Robb 25 Daughter None Pennsylvania
71 Marion Robb 1 Gr. Daugh None New Jersey
72 Robert Robb 0 Gr. Son None New Jersey
73 Mary Alexander THIS PERSON 23 Daughter Paper Cutter New Jersey
74 Louisa Bell 71 Head None Germany
75 Elizabeth Bell 46 Daughter Attendant Pennsylvania
76 William H Reynolds 51 Head Truck Driver Pennsylvania
77 Michael J Dougherty 27 Head Ice Salesman Pennsylvania
78 Adeline Dougherty 25 Wife-H None Pennsylvania
79 Margaret E Dougherty 3 Daughter None New Jersey
80 George Gruff 44 Head Marker New Jersey
81 George Gruff 21 Son Box Crater New Jersey
82 Gilbert Gruff 13 Son None New Jersey
83 William Gruff 11 Son None New Jersey
84 Phillip Angus 42 Head Machinist Scotland
85 Matilda Angus 38 Wife-H None Scotland
86 Margaret Angus 10 Daughter None Indiana
87 Robert W. Angus 9 Son None New Jersey
88 Ward Bovell 54 Uncle-in-law Elevator Operator Ireland
89 Joseph Bovell 31 Bro-in-law Laundryman Scotland
90 Josephine Boyle 15 Niece-in-law None Scotland
91 Daniel Quinn 56 Head Toll Collector New Jersey
92 Sarah Quinn 52 Wife-H None New Jersey
93 Mary Quinn 16 Daughter None New Jersey
94 Sarah Farrell 24 Daughter None New Jersey
95 Louis Farrell 27 Son-in-law Compositor Pennsylvania
96 Sarah Boddingham 73 Head None Scotland
97 Robert Boddingham 47 Son Machinist New Jersey
98 William Templin 56 Boarder Labourer Pennsylvania

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Pedigree Summary

Mary + 5 siblings
Gen 1 · 3 parents ~0.92
Max depth 4 (1900–1950 window)

About This Record & Model Tree

This record was independently indexed by YourRoots from the 1930 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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