MK
Mary Kerr — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Collin-County, Texas
Our Model Tree links this Mary Kerr across the 1930 and 1940 US Censuses in Collin-County, Texas (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 10-person household.
Age 19
b. ~1921
Female
Daughter
Born: Texas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Collin-County, Texas |
| Surname | Kerr |
| Given Name | Mary F |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Texas |
| 1935 Residence (City) | Justice Precinct 1 |
| 1935 Residence (County) | Collin |
| Additional Details | |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
| Township / Ward | Justice Precinct 1 |
| Est. Birth Year | ~1921 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Ruth Kerr | Daughter | — | 15 | ~1925 |
| Dudley Kerr | Son | — | 1 | ~1939 |
| Joyce Kerr | Daughter | — | 7 | ~1933 |
| Roger Kerr | Head | — | 47 | ~1893 |
| Myrtle Kerr | Spouse | — | 37 | ~1903 |
| Mary Kerr | Daughter | — | 19 | ~1921 |
| Bill Kerr | Son | — | 4 | ~1936 |
| Alma Kerr | Daughter | — | 13 | ~1927 |
| Harold Kerr | Son | — | 25 | ~1915 |
| Lois Kerr | Daughter | — | 9 | ~1931 |
Census Appearances
1930
Collin, Texas
Daughter, age 9
Collin, Texas · implied b. ~1921 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kerr |
| Given Name | Mary F. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Texas |
| Father's Birthplace | Texas |
| Mother's Birthplace | Texas |
| Can Read/Write | Yes |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
1940
Collin-County, Texas
Daughter, age 19
Collin-County, Texas · implied b. ~1921 — 10 household members
| Surname | Kerr |
| Given Name | Mary F |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Texas |
| 1935 Residence (City) | Justice Precinct 1 |
| 1935 Residence (County) | Collin |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
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 Kerr across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Kerr
Daughter · 1940 · age 19 · b. ~1921 · Texas
★ You are viewing this record
Sibling
Ruth Kerr
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Kerr
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dudley Kerr
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alma Kerr
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joyce Kerr
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bill Kerr
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lois Kerr
Sibling · 1940 · age 9
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 — Collin-County, Texas
Open full size
1940 US Federal Census — Collin-County, Texas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04009-00186)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William O Ganey | 26 | Son | Carpenter | Texas |
| 2 | Nellie M Ganey | 22 | Daughter-in-law | — | Texas |
| 3 | Charles D Ganey | 4 | Grandson | — | Texas |
| 4 | J. W. D. Ganey | 2 | Grandson | — | Texas |
| 5 | Eugene E. Baxter | 39 | Head | Carpenter | Texas |
| 6 | Clyde D Baxter | 39 | Wife | — | Oklahoma |
| 7 | Eugene E. Jr Baxter | 15 | Son | — | Texas |
| 8 | Thomas B Baxter | 11 | Son | — | Texas |
| 9 | Eugene E. Jr Baxter | 9 | Son | — | Texas |
| 10 | Robert D. D. Edens | 72 | Head | Farmer | Arkansas |
| 11 | Mary E Edens | 65 | Wife | — | Tennessee |
| 12 | Ray D Bradley | 46 | Head | Laborer | Texas |
| 13 | Eula A Bradley | 48 | Wife | — | Kentucky |
| 14 | Ray D Jr Bradley | 15 | Son | — | Texas |
| 15 | Mary F Bradley | 9 | Daughter | — | Texas |
| 16 | Lewis D Bradley | 25 | Head | Farmer | Texas |
| 17 | Alma Bradley | 24 | Wife | — | Texas |
| 18 | James Robert Bradley | 3 | Son | — | Texas |
| 19 | Roger L Kerr | 47 | Head | Farmer | Texas |
| 20 | Myrtle Kerr | 37 | Wife | — | Texas |
| 21 | Harold B Kerr | 25 | Son | Laborer | Texas |
| 22 | Mary F Kerr THIS PERSON | 19 | Daughter | — | Texas |
| 23 | Ruth C Kerr | 15 | Daughter | — | Texas |
| 24 | Alma A Kerr | 13 | Daughter | — | Texas |
| 25 | Lois F Kerr | 9 | Daughter | — | Texas |
| 26 | Joyce E Kerr | 7 | Daughter | — | Texas |
| 27 | Bill M Kerr | 4 | Son | — | Texas |
| 28 | Dudley Ray Kerr | 1 | Son | — | Texas |
| 29 | Charles J Hall | 35 | Head | Farmer | Texas |
| 30 | Bernice M Hall | 29 | Wife | — | Texas |
| 31 | Lelia C Hall | 4 | Daughter | — | Texas |
| 32 | Dennis L Hall | 1 | Son | — | Texas |
| 33 | Charles J Jr Hall | 0 | Son | — | Texas |
| 34 | Emmit E Maughan | 51 | Head | Laborer | Texas |
| 35 | Lelia M Maughan | 47 | Wife | — | Texas |
| 36 | Doris J Maughan | 13 | Daughter | — | Texas |
| 37 | Elbert R Edmonds | 25 | Head | Farmer | Texas |
| 38 | Dorothy E Edmonds | 21 | Wife | — | Texas |
| 39 | Marjorie L Edmonds | 1 | Daughter | — | Texas |
| 40 | Mina Hunter | 64 | Head | — | 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)