GJ
Grace Jackson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Comanche-County, Oklahoma
Our Model Tree links this Grace Jackson across the 1930 and 1940 US Censuses in Comanche-County, Oklahoma (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 7-person household.
Age 19
b. ~1921
Female
Daughter
Born: Oklahoma
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Comanche-County, Oklahoma |
| Surname | Jackson |
| Given Name | Grace |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Lawton City |
| 1935 Residence (County) | Comanche |
| Additional Details | |
| Occupation | Housework |
| Industry | Home |
| Class of Worker | NP |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
| Occupation | Housework |
| Township / Ward | Lawton City |
| 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Grace | Age | Birth yr |
|---|---|---|---|---|
| W Jackson | Head | — | 46 | ~1894 |
| Grace Jackson | Daughter | — | 19 | ~1921 |
| Billy Jackson | Son | — | 7 | ~1933 |
| Beatrice Jackson | Daughter | — | 17 | ~1923 |
| Lillie Jackson | Daughter | — | 4 | ~1936 |
| Darlene Jackson | Daughter | — | 1 | ~1939 |
| Bertie Jackson | Spouse | — | 40 | ~1900 |
Census Appearances
1930
Comanche, Oklahoma
Daughter, age 9
Comanche, Oklahoma · implied b. ~1921 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jackson |
| Given Name | Grace |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| Father's Birthplace | Texas |
| Mother's Birthplace | Alabama |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1940
Comanche-County, Oklahoma
Daughter, age 19
Comanche-County, Oklahoma · implied b. ~1921 — 7 household members
| Surname | Jackson |
| Given Name | Grace |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Lawton City |
| 1935 Residence (County) | Comanche |
| Occupation | Housework |
| Industry | Home |
| Class of Worker | NP |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 Grace Jackson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Grace Jackson
Daughter · 1940 · age 19 · b. ~1921 · Oklahoma
★ You are viewing this record
Sibling
Beatrice Jackson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Darlene Jackson
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Billy Jackson
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lillie Jackson
Sibling · 1940 · age 4
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 — Comanche-County, Oklahoma
Open full size
1940 US Federal Census — Comanche-County, Oklahoma
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03286-00763)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Rena Fern Combs | 5 | Daughter | — | Oklahoma |
| 42 | Felix Dunn | 33 | Head | Laborer | Oklahoma |
| 43 | Jewel Dunn | 32 | Wife | Housewife | Alabama |
| 44 | June Dunn | 15 | Daughter | School | Oklahoma |
| 45 | Erma Dunn | 13 | Daughter | — | Oklahoma |
| 46 | Billy Dunn | 10 | Son | — | Oklahoma |
| 47 | Lucille Dunn | 7 | Daughter | — | Oklahoma |
| 48 | James Cherry | 25 | Head | Laborer | Oklahoma |
| 49 | Lillian Cherry | 21 | Wife | Housewife | Oklahoma |
| 50 | Betty Lou Cherry | 1 | Daughter | — | Oklahoma |
| 51 | Leland Walker | 25 | Head | Laborer | Oklahoma |
| 52 | Alice Walker | 21 | Wife | Housewife | Arkansas |
| 53 | Sandra Kay Walker | 3 | Daughter | — | Oklahoma |
| 54 | Wayne Walker | 0 | Son | — | Oklahoma |
| 55 | John Kates | 42 | Head | Laborer | Texas |
| 56 | Susie Kates | 43 | Wife | Housewife | Tennessee |
| 57 | Marge Kates | 14 | Daughter | School | Oklahoma |
| 58 | Jim Annie Kates | 12 | Daughter | — | Oklahoma |
| 59 | Ralph Graham | 29 | Head | Griner | Oklahoma |
| 60 | Ruth Graham | 26 | Wife | Housewife | Idaho |
| 61 | Betty Jo Graham | 9 | Daughter | — | Oklahoma |
| 62 | Danville Graham | 5 | Son | — | Oklahoma |
| 63 | Norma Jean Graham | 4 | Daughter | — | Oklahoma |
| 64 | W. J. Jackson | 46 | Head | Laborer | Texas |
| 65 | Bertie Jackson | 40 | Wife | Housewife | Alabama |
| 66 | Grace Jackson THIS PERSON | 19 | Daughter | Housework | Oklahoma |
| 67 | Beatrice Jackson | 17 | Daughter | School | Oklahoma |
| 68 | Billy Jackson | 7 | Son | — | Oklahoma |
| 69 | Lillie Lee Jackson | 4 | Daughter | — | Oklahoma |
| 70 | Darlene Jackson | 1 | Daughter | — | Oklahoma |
| 71 | David Harrison | 27 | Head | Laborer | Oklahoma |
| 72 | John Harrison | 25 | Head | Laborer | Oklahoma |
| 73 | Ione Harrison | 20 | Wife | Housewife | Oklahoma |
| 74 | Bobby Joe Harrison | 1 | Son | — | Oklahoma |
| 75 | John D. Harrison | 0 | Son | — | Oklahoma |
| 76 | Erika Angle | 54 | Mother-in-law | Pleater | Arkansas |
| 77 | H. W. Wassa | 34 | Head | Laborer | Oklahoma |
| 78 | Alene Wassa | 30 | Wife | Maid | Texas |
| 79 | John Serrano | 57 | Head | Laborer | Texas |
| 80 | Matty Serrano | 58 | Wife | Housewife | Oklahoma |
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)