HJ
Helen Jackson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Missouri
Our Model Tree links this Helen Jackson across the 1920, 1930 and 1940 US Censuses in Marion-County, Missouri (XGBoost, ~Confirmed), with identified parents Cora & Lotta — first a daughter (b.~1907), then head of a 5-person household.
Age 33
b. ~1907
Female
Daughter
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Missouri |
| Surname | Jackson |
| Given Name | Helen |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Hannibal City |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | Hannibal City |
| Est. Birth Year | ~1907 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Clara Reed | Daughter | — | 16 | ~1924 |
| Lottie Russell | Daughter | — | 25 | ~1915 |
| Anna Miller | Daughter | — | 27 | ~1913 |
| Helen Jackson | Daughter | — | 33 | ~1907 |
| Lottie Jackson | Head | — | 50 | ~1890 |
Census Appearances
1920
Marion, Missouri
Daughter, age 14
Marion, Missouri · implied b. ~1906 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jackson |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
Marion, Missouri
Daughter, age 24
Marion, Missouri · implied b. ~1906 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jackson |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | Servant |
| Industry | Private Family |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Marion-County, Missouri
Daughter, age 33
Marion-County, Missouri · implied b. ~1907 — 5 household members
| Surname | Jackson |
| Given Name | Helen |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Hannibal City |
| 1935 Residence (County) | Marion |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Helen Jackson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Cora Jackson (~0.92 confidence) and mother Lotta Jackson (~0.92 confidence) and mother Lottie Jackson (~0.92 confidence) and mother Lottie Jackson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Cora Jackson
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Lotta Jackson
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Lottie Jackson
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Lottie Jackson
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Jackson
Daughter · 1940 · age 33 · b. ~1907 · Missouri
★ You are viewing this record
Sibling
Lottie Russell
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clara Reed
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Miller
Sibling · 1940 · age 27
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 — Marion-County, Missouri
Open full size
1940 US Federal Census — Marion-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02128-00156)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Virginia Lee Morris, Mary | 13 | daughter | — | Missouri |
| 42 | Paul Winthrop | 20 | Head | Truck Driver | Missouri |
| 43 | Frances Winthrop | 22 | Wife | — | Missouri |
| 44 | John E. Bradshaw | 76 | Head | Shoe Worker | Kentucky |
| 45 | Dora Bradshaw | 65 | Wife | — | Texas |
| 46 | William Smith | 43 | Head | Labor | Illinois |
| 47 | Ida Smith | 22 | Wife | — | Missouri |
| 48 | Mary Smith | 83 | Mother | — | Illinois |
| 49 | Robert Smith | 19 | Son | — | Missouri |
| 50 | Mary Jane Smith | 2 | daughter | — | Missouri |
| 51 | Velva Williams | 27 | Head | Maid | Missouri |
| 52 | Eula Williams | 21 | Sister | Maid | Missouri |
| 53 | Frank Williams | 19 | Brother | Labor | Missouri |
| 54 | Herman Fester | 11 | Son | — | Missouri |
| 55 | Joseph Albey | 32 | Lodger | Labor | Missouri |
| 56 | Harry White | 65 | Head | — | Missouri |
| 57 | William Marshall | 23 | Head | Mechanic | Missouri |
| 58 | Catherine Marshall | 19 | Wife | Maid | Missouri |
| 59 | Otis Starr | 52 | Head | Gas Filter Plant | Missouri |
| 60 | Edna Starr | 45 | Wife | — | Indiana |
| 61 | Evelyn Starr | 20 | daughter | Typist | Missouri |
| 62 | Dora Baker | 77 | Mother-in-law | — | Illinois |
| 63 | Robert Post | 32 | Head | Salesman | Missouri |
| 64 | Olivetta Post | 27 | Wife | — | Missouri |
| 65 | Robert Jr. Post | 2 | Son | — | Missouri |
| 66 | Clay Smith | 79 | Head | — | Missouri |
| 67 | Marshall Suckert | 57 | Brother-in-law | — | Missouri |
| 68 | Roger Surber | 21 | Nephew | Labor | Missouri |
| 69 | Canna Doles | 45 | Head | — | Iowa |
| 70 | Harry Jones | 28 | Head | Laster | Missouri |
| 71 | April Jones | 24 | Wife | — | Missouri |
| 72 | Lawrence Jones | 4 | Son | — | Missouri |
| 73 | Lottie Jackson | 50 | Head | House Maid | Missouri |
| 74 | Helen Jackson THIS PERSON | 33 | daughter | — | Missouri |
| 75 | Anna Miller | 27 | daughter | Maid | Missouri |
| 76 | Lottie Russell | 25 | daughter | Maid | Missouri |
| 77 | Clara Reed | 16 | daughter | — | Illinois |
| 78 | John Sanderson | 64 | Head | — | Virginia |
| 79 | Addie Sanderson | 65 | Wife | — | Missouri |
| 80 | Nellie Edward | 62 | Maid | Maid | Missouri |
Pedigree Summary
Helen + 3 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)