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Mary Brock — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Loup-County, Nebraska
Our Model Tree links this Mary Brock across the 1930 and 1940 US Censuses in Loup-County, Nebraska (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 8-person household.
Age 17
b. ~1923
Female
Daughter
Born: Oklahoma
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Loup-County, Nebraska |
| Surname | Brock |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Taylor Village |
| 1935 Residence (County) | Loup |
| Additional Details | |
| Highest Grade | H 3 |
| 1935 Residence | Same house |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
| Township / Ward | Taylor Village |
| Est. Birth Year | ~1923 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| George Brock | Head | — | 49 | ~1891 |
| Georgia Brock | Daughter | — | 12 | ~1928 |
| Lela Brock | Spouse | — | 39 | ~1901 |
| Dorothy Brock | Daughter | — | 3 | ~1937 |
| Mary Brock | Daughter | — | 17 | ~1923 |
| Billy Brock | Son | — | 6 | ~1934 |
| Thelma Brock | Daughter | — | 8 | ~1932 |
| John Brock | Son | — | 30 | ~1910 |
Census Appearances
1930
Loup, Nebraska
Daughter, age 7
Loup, Nebraska · implied b. ~1923 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brock |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Nebraska |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1940
Loup-County, Nebraska
Daughter, age 17
Loup-County, Nebraska · implied b. ~1923 — 8 household members
| Surname | Brock |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Taylor Village |
| 1935 Residence (County) | Loup |
| Highest Grade | H 3 |
| 1935 Residence | Same house |
| 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.
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 17 · b. ~1923 · Nebraska
★ You are viewing this record
Sibling
Georgia Brock
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Brock
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thelma Brock
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Brock
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Billy Brock
Sibling · 1940 · age 6
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 — Loup-County, Nebraska
Open full size
1940 US Federal Census — Loup-County, Nebraska
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02256-00896)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lucinda Bishop | 80 | Head | — | Wisconsin |
| 2 | Alma Bishop | 51 | Daughter | Housework Aid | Nebraska |
| 3 | Stella Bishop | 19 | Granddaughter | — | Nebraska |
| 4 | Cora Lyons | 68 | Head | — | Missouri |
| 5 | Maurice Smith | 58 | Head | — | New York |
| 6 | Bessie Smith | 54 | Wife | — | Nebraska |
| 7 | Ben F. Fuller | 79 | Father-in-law | — | Indiana |
| 8 | William Kelenkamp | 58 | Head | Janitor | Georgia |
| 9 | Marian Kelenkamp | 27 | Daughter | Teacher | Nebraska |
| 10 | Charles Kelenkamp | 20 | Grandson | Mechanic | Nebraska |
| 11 | Clifford Fleming | 45 | Head | Clerk | Nebraska |
| 12 | Velma Fleming | 40 | Wife | — | Nebraska |
| 13 | Lloyd Fleming | 20 | Son | — | Nebraska |
| 14 | Kenneth Fleming | 16 | Son | — | Nebraska |
| 15 | Enola Fleming | 11 | Daughter | — | Nebraska |
| 16 | Martha Corrick | 48 | Head | — | Nebraska |
| 17 | Maurice Corrick | 21 | Son | Driver | Nebraska |
| 18 | Edd. J. Dohy | 60 | Head | — | Nebraska |
| 19 | Belle Dohy | 61 | Wife | — | Illinois |
| 20 | C. B. Clayton | 89 | Father-in-law | — | Illinois |
| 21 | Ray La Gale | 29 | Head | Clerk | Nebraska |
| 22 | Isabel La Gale | 28 | Wife | — | Nebraska |
| 23 | Clarence Nunn | 46 | Head | Laborer | Nebraska |
| 24 | Ernest Battlefield | 44 | Head | Farmer | Nebraska |
| 25 | Florence Battlefield | 44 | Wife | — | Nebraska |
| 26 | Mildred Battlefield | 21 | Daughter | Teacher | Nebraska |
| 27 | Russell Battlefield | 19 | Son | Farmer | Nebraska |
| 28 | Lena Miller | 75 | Head | — | Iowa |
| 29 | Samuel Sears | 66 | Brother | — | Iowa |
| 30 | Martha Sears | 67 | Sister-in-law | — | Iowa |
| 31 | George Brock | 49 | Head | Sheriff | Kansas |
| 32 | Lela Brock | 39 | Wife | — | Nebraska |
| 33 | John Brock | 30 | Son | Laborer | Oklahoma |
| 34 | Mary Brock THIS PERSON | 17 | Daughter | — | Oklahoma |
| 35 | Georgia Brock | 12 | Daughter | — | Nebraska |
| 36 | Thelma Brock | 8 | Daughter | — | Nebraska |
| 37 | Billy Brock | 6 | Son | — | Nebraska |
| 38 | Dorothy Brock | 3 | Daughter | — | Nebraska |
| 39 | James Drake | 64 | Head | — | Nebraska |
| 40 | Mary Drake | 60 | Wife | — | Tennessee |
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)