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John Orr — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Los-Angeles-County, California

Our Model Tree links this John Orr across the 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 6-person household.

Age 21 b. ~1919 Male Son Born: California Single

1940 Census Record Details

Census Year1940
LocationLos-Angeles-County, California
SurnameOrr
Given NameJohn
Relationship to HeadSon
SexM
Color / RaceWhite
Age21
Marital StatusSingle
BirthplaceCalifornia
1935 Residence (City)Los Angeles City
1935 Residence (County)Los Angeles
Additional Details
Occupationmechanic apprentice
Industrypaper cup company
Class of WorkerPW
Hours Worked48
Income (1939)412
Highest GradeHs 4
1935 ResidenceSame place
Birth StateCalifornia
Birth CountryUnited States
Birthplace (normalized)california
OccupationMechanic Apprentice
Township / WardLos Angeles City
Est. Birth Year~1919

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.

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

Name Relation to head Relative to John Age Birth yr
Robert Orr Head — 53 ~1887
Myrtle Orr Spouse — 51 ~1889
Leonard Orr Son — 18 ~1922
Robert Orr Son — 24 ~1916
Joseph Orr Son — 25 ~1915
John Orr Son — 21 ~1919

Census Appearances

1930
Los Angeles, …
Son, age 11
Los Angeles, California · implied b. ~1919 — 8 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Ohr
Given Name John W
Relationship to Head Son
Sex M
Color / Race White
Age 11
Marital Status Single
Birthplace California
Father's Birthplace Missouri
Mother's Birthplace Texas
Occupation none
Can Read/Write Yes
Birth State California
Birth Country United States
Birthplace (normalized) california
1940
Los-Angeles-County, California
Son, age 21
Los-Angeles-County, California · implied b. ~1919 — 6 household members
Surname Orr
Given Name John
Relationship to Head Son
Sex M
Color / Race White
Age 21
Marital Status Single
Birthplace California
1935 Residence (City) Los Angeles City
1935 Residence (County) Los Angeles
Occupation mechanic apprentice
Industry paper cup company
Class of Worker PW
Hours Worked 48
Income (1939) 412
Highest Grade Hs 4
1935 Residence Same place
Birth State California
Birth Country United States
Birthplace (normalized) california

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 John Orr across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Orr
Son · 1940 · age 21 · b. ~1919 · California
★ You are viewing this record
Sibling
Leonard Orr
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Orr
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Orr
Sibling · 1940 · age 24
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 — Los-Angeles-County, California Open full size

Page Contents

39 people indexed on this census page (nara:1940:m-t0627-00388-00541)

Line Name Age Relation Occupation Birthplace
42 Leslie S Young 53 Head Printer Illinois
43 Anna Young 50 Wife — Michigan
44 Rosa H Walton 62 Head — Virginia
45 Isabel Walton 21 Daughter Teacher Virginia
46 Frank L Walton 20 Son Carpenter Helper Kansas
47 Zella I Miller 74 Head — Missouri
48 Julia S Brown 67 Head 5 Illinois
49 Lulu West 71 Head — Ohio
50 Charles Noakes 55 Head Truck Driver Nebraska
51 Alma Noakes 49 Wife — Nebraska
52 Edward Burrows 70 Head — Illinois
53 Emma B Burrows 68 Wife — Illinois
54 Mitti B Lentz 64 Head — Kansas
55 Nora A Clawson 67 Head — Vermont
56 Annie E Staffer 68 Head — Texas
57 William Staffer 17 Son — California
58 Elsie M Prebble 52 Head Cosmetician Iowa
59 Gene H Prebble 18 Son — Oklahoma
60 Doris M Caraway 28 Daughter — Nebraska
61 Mable M Stange 48 Head Copyist Illinois
62 Robert H Orr 53 Head Policeman Missouri
63 Myrtle Orr 51 Wife — Texas
64 Robert W Orr 24 Son — Missouri
65 Joseph L Orr 25 Son Truck Driver Missouri
66 John Orr THIS PERSON 21 Son Mechanic Apprentice California
67 Leonard Orr 18 Son — California
68 Harold Jillson 26 Head Stock Clerk Idaho
69 Louise Jillson 27 Wife — Missouri
70 Donald Jillson 5 Son — California
71 Diane Jillson 3 Daughter — California
72 Isaac Mc Candless 54 Head Inspector Massachusetts
73 Florence Mc Candless 55 Wife — Canada French
74 William Mc Candless 24 Head — New Jersey
75 Patrick J Currie 39 Head Police Officer Canada English
76 Mertyle Currie 35 Wife — Montana
77 James Currie 11 Son — California
78 Rosemary Currie 8 Daughter — California
79 Leo Greenhew 42 Head — Oklahoma
80 Unis Greenhew 36 Wife — Oklahoma

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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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