YourRoots by Genomelink
Sign up free
MB

Mary Brock — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Forrest-County, Mississippi

Our Model Tree links this Mary Brock across the 1930 and 1940 US Censuses in Forrest-County, Mississippi (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 9-person household.

Age 14 b. ~1926 Female Daughter Born: Mississippi Single

1940 Census Record Details

Census Year1940
LocationForrest-County, Mississippi
SurnameBrock
Given NameMary Lou
Relationship to HeadDaughter
SexF
Color / RaceWhite
Age14
Marital StatusSingle
BirthplaceMississippi
1935 Residence (City)Lamar
Additional Details
Highest GradeNo 4
1935 ResidenceMississippi
Birth StateMississippi
Birth CountryUnited States
Birthplace (normalized)mississippi
Township / WardBeat 515
Est. Birth Year~1926

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
Rena Brock Spouse — 44 ~1896
Sidney Brock Son — 11 ~1929
George Brock Head — 50 ~1890
Thomas Brock Son — 16 ~1924
Curtis Brock Daughter — 9 ~1931
Betty Brock Daughter — 5 ~1935
Mary Brock Daughter — 14 ~1926
Bizlie Brock Daughter — 21 ~1919
Alex Brock Son — 3 ~1937

Census Appearances

1930
Forrest, Mississippi
Daughter, age 4
Forrest, Mississippi · implied b. ~1926 — 9 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Brock
Given Name Mary L.
Relationship to Head Daughter
Sex F
Color / Race White
Age 4
Marital Status Single
Birthplace Mississippi
Father's Birthplace Alabama
Mother's Birthplace Mississippi
Occupation none
Birth State Mississippi
Birth Country United States
Birthplace (normalized) mississippi
1940
Forrest-County, Mississippi
Daughter, age 14
Forrest-County, Mississippi · implied b. ~1926 — 9 household members
Surname Brock
Given Name Mary Lou
Relationship to Head Daughter
Sex F
Color / Race White
Age 14
Marital Status Single
Birthplace Mississippi
1935 Residence (City) Lamar
Highest Grade No 4
1935 Residence Mississippi
Birth State Mississippi
Birth Country United States
Birthplace (normalized) mississippi

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 Brock across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Brock
Daughter · 1940 · age 14 · b. ~1926 · Mississippi
★ You are viewing this record
Sibling
Betty Brock
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Curtis Brock
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Brock
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alex Brock
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bizlie Brock
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sidney Brock
Sibling · 1940 · age 11
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 — Forrest-County, Mississippi Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-02021-00952)

Line Name Age Relation Occupation Birthplace
1 Nora Dennis 42 Sister Waitress Alabama
2 Margie Dennis 14 Niece — Mississippi
3 James Bond 32 Brother Labour Mississippi
4 Josephine Bond 23 Sister — Alabama
5 James A. Bond 9 Nephew — Mississippi
6 Opal Bond 8 Niece — Mississippi
7 Wilkin D. Byrd 53 Head Farm Laborer Mississippi
8 Marilla Byrd 55 Wife — Mississippi
9 Helen Knight 24 Daughter — Mississippi
10 Genia Knight 6 Daughter — Mississippi
11 Lester Knight 4 Grandson — Mississippi
12 Houston Knight 2 Grandson — Mississippi
13 Cecil V. Knight 0 Grandson — Mississippi
14 Talmadge Byrd 18 Son Laborer Mississippi
15 Forrest Batson 26 Head Manager Mississippi
16 Jewel Batson 24 Wife — Mississippi
17 Maurice Batson 6 Son — Mississippi
18 O. Biser 54 Head Farmer Mississippi
19 Thuron Biser 18 Son Farm Laborer Mississippi
20 Herbert Reid 32 Head Farm Laborer Mississippi
21 Delphia Reid 23 Wife — Mississippi
22 Bettie Lois Reid 1 Daughter — Mississippi
23 Virginia Nell Reid 0 Daughter — Mississippi
24 James D. Gussely 56 Head — Georgia
25 Lucy Gussely 54 Wife Teacher Mississippi
26 Lucy Gussely 17 Daughter — Mississippi
27 George Brock 50 Head Labour Alabama
28 Rena Brock 44 Wife — Mississippi
29 Bizlie Brock 21 Daughter — Mississippi
30 Thomas Brock 16 Son Labour Mississippi
31 Mary Lou Brock THIS PERSON 14 Daughter — Mississippi
32 Sidney Brock 11 Son — Mississippi
33 Curtis Brock 9 Daughter — Mississippi
34 Betty Brock 5 Daughter — Mississippi
35 Alex Brock 3 Son — Mississippi
36 Rodolph Slade 50 Head Laborer Mississippi
37 Gertrude Slade 36 Wife — Florida
38 Jasper Slade 20 Son Laborer Mississippi
39 Ireland Slade 16 Son Laborer Mississippi
40 Bettie Gene Slade 8 Daughter — Mississippi

Search for Mary Brock

All Mary Brock Census Records Discover Brock Family Tree

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)

Report inaccurate data
👤 View Profile 🌳 Ancestors 👥 Descendants