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John Mann — 1930 US Census Record

Linked across censuses

1930 United States Federal Census · Grant, Oklahoma

Our Model Tree links this John Mann across the 1920 and 1930 US Censuses in Grant, Oklahoma (XGBoost, ~Confirmed) — first a son (b.~1914), then head of a 9-person household.

Age 16 b. ~1914 Male Son Born: Oklahoma Single

1930 Census Record Details

Census Year1930
LocationGrant, Oklahoma
SurnameMann
Given NameJohn L.
Relationship to HeadSon
SexM
Color / RaceWhite
Age16
Marital StatusSingle
BirthplaceOklahoma
Father's BirthplaceKansas
Mother's BirthplaceKansas
Additional Details
OccupationLaborer
IndustryFarm
Class of WorkerW
Can Read/WriteYes
Birth StateOklahoma
Birth CountryUnited States
Birthplace (normalized)oklahoma
OccupationLaborer
Township / WardSalt Fork Township
Est. Birth Year~1914

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 1930 census.

Name Relation to head Relative to John Age Birth yr
Ernest Mccarty Other — 17 ~1913
Hattie Mann Other — 34 ~1896
John Mann Son — 16 ~1914
John Mann Head — 40 ~1890
Larkin Mann Son — 14 ~1916
Katherine Mann Daughter — 13 ~1917
Billie Mann Son — 11 ~1919
Alice Mann Daughter — 10 ~1920
Gilbert Mann Son — 8 ~1922

Census Appearances

1920
Grant, Oklahoma
Son, age 6
Grant, Oklahoma · implied b. ~1914 — 7 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Mann
Given Name John L
Relationship to Head Son
Sex M
Color / Race White
Age 6
Marital Status Single
Birthplace Oklahoma
Father's Birthplace Kansas
Mother's Birthplace Kansas
Can Read No
Birth State Oklahoma
Birth Country United States
Birthplace (normalized) oklahoma
1930
Grant, Oklahoma
Son, age 16
Grant, Oklahoma · implied b. ~1914 — 9 household members
Surname Mann
Given Name John L.
Relationship to Head Son
Sex M
Color / Race White
Age 16
Marital Status Single
Birthplace Oklahoma
Father's Birthplace Kansas
Mother's Birthplace Kansas
Occupation Laborer
Industry Farm
Class of Worker W
Can Read/Write Yes
Birth State Oklahoma
Birth Country United States
Birthplace (normalized) oklahoma

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 Mann across 2 US Census years (1920 and 1930) in Grant, Oklahoma, using XGBoost record linkage.
Show:
This person
Anchor record
John Mann
Son · 1930 · age 16 · b. ~1914 · Oklahoma
★ You are viewing this record
Sibling
Alice Mann
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gilbert Mann
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Larkin Mann
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Billie Mann
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Katherine Mann
Sibling · 1930 · 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

1930 US Federal Census — Grant, Oklahoma Open full size

Page Contents

44 people indexed on this census page (ia:1930:15thcensus1905unit:0287)

Line Name Age Relation Occupation Birthplace
1 John H. Mann 40 Head Farmer Kansas
2 Hattie A. Mann 34 Wife-H — Kansas
3 John L. Mann THIS PERSON 16 Son Laborer Oklahoma
4 Larkin J. Mann 14 Son Laborer Oklahoma
5 Katherine A. Mann 13 Daughter — Oklahoma
6 Billie G. Mann 11 Son — Oklahoma
7 Alice D. Mann 10 Daughter — Oklahoma
8 Gilbert M. Mann 8 Son — Oklahoma
9 Ernest Mccarty 17 Lodger Laborer Oklahoma
10 Floyd Hollingshead 28 Head Farmer Iowa
11 Millie Hollingshead 20 Wife-H — Kansas
12 Rosa M. Hollingshead 1 Daughter — Oklahoma
13 Murrel A. Hollingshead 0 Son — Oklahoma
14 Earl Ward 21 Lodger Laborer Texas
15 Robert E. Foster 44 Head Farmer Missouri
16 Clela Foster 40 Wife-H — Colorado
17 Joe R. Foster 16 Son Laborer Oklahoma
18 Dorothy Foster 14 Daughter — Oklahoma
19 Larkin Mann 65 O Farmer Illinois
20 Alice J. Mann 59 Wife-H — Ohio
21 Larkin B. Mann 36 Son Farmer Oklahoma
22 August Ehlers 71 Lodger Carpenter Illinois
23 Lewis R. Prilliman 17 R Laborer Kansas
24 Anna Prilliman 20 Wife-H — Oklahoma
25 Clarence J. Mccary 35 O Farmer Kansas
26 Hazel A. Mccary 32 Wife-H — Oklahoma
27 La Royce Mccary 13 Daughter — Oklahoma
28 Jack R. Mccary 12 Son — Oklahoma
29 Chester C. Mccary 10 Son — New Mexico
30 Roy Williams 77 O Farmer Missouri
31 William Williams 74 Brother Laborer Missouri
32 John A. Mckee 22 O Farmer Oklahoma
33 Sam Grimm 38 R Farmer Nebraska
34 Hazel A. Grimm 33 Wife-H — Iowa
35 Lester M. Grimm 14 Son — Oklahoma
36 Sam W. Grimm 10 Son — Oklahoma
37 Claudine Grimm 6 Daughter — Oklahoma
38 Otto Nelson 33 R Mechanic Oklahoma
39 Cora M. Nelson 31 Wife-H — Oklahoma
40 Opal P. Nelson 16 Daughter — Oklahoma
41 Arthur B. Nelson 12 Son — Oklahoma
42 Henry L. Nelson 10 Son — Oklahoma
43 Earl Nelson 6 Son — Oklahoma
44 Leroy Y. Nelson 2 Son — Oklahoma

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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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