ML
Mary Long — 1940 US Census Record
Model Tree available1940 United States Federal Census · Fulton-County, Illinois
Our Model Tree links this Mary Long across the 1920, 1930 and 1940 US Censuses in Fulton-County, Illinois (XGBoost, ~Confirmed), with identified parents Jesse & Jesse — first a daughter (b.~1920), then head of a 4-person household.
Age 20
b. ~1920
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Fulton-County, Illinois |
| Surname | Long |
| Given Name | Mary K. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Cuba City |
| 1935 Residence (County) | Fulton |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | C-2 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Cuba City |
| Est. Birth Year | ~1920 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Florence Long | Daughter | — | 40 | ~1900 |
| Mary Long | Daughter | — | 20 | ~1920 |
| Jesse Long | Head | — | 67 | ~1873 |
| Lydia Long | Spouse | — | 60 | ~1880 |
Census Appearances
1920
Fulton, Illinois
Daughter, age
Fulton, Illinois · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | Mary C. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Fulton, Illinois
Daughter, age 10
Fulton, Illinois · implied b. ~1920 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | Mary K. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Fulton-County, Illinois
Daughter, age 20
Fulton-County, Illinois · implied b. ~1920 — 4 household members
| Surname | Long |
| Given Name | Mary K. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Cuba City |
| 1935 Residence (County) | Fulton |
| Income (1939) | 0 |
| Highest Grade | C-2 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Long across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Jesse Long (~0.92 confidence) and father Jesse Long (~0.92 confidence) and mother Callie Long (~0.92 confidence) and mother Effie Long (~0.92 confidence) and mother Lydia Long (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Jesse Long
b. ~1876
Source father
● Household
· direct · ~0.92
Father
Jesse Long
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Callie Long
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Effie Long
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Lydia Long
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Long
Daughter · 1940 · age 20 · b. ~1920 · Illinois
★ You are viewing this record
Sibling
Florence Long
Sibling · 1940 · age 40
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 — Fulton-County, Illinois
Open full size
1940 US Federal Census — Fulton-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00806-00461)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ezek Naton | 25 | Head | Blacksmith | Illinois |
| 2 | Mary Churchill | 70 | Head | — | Illinois |
| 3 | Amelia Clutter | 75 | Lodger | — | Illinois |
| 4 | George Owens | 50 | Head | Laborer | Illinois |
| 5 | Mary Owens | 50 | Wife | — | Illinois |
| 6 | Richard Owens | 13 | Son | — | Illinois |
| 7 | Laveta Owens | 9 | Daughter | — | Illinois |
| 8 | James Owens | 6 | Son | — | Illinois |
| 9 | Oscar Neff | 46 | Head | Mechanic | Illinois |
| 10 | Ruth Neff | 42 | Wife | — | Illinois |
| 11 | Ronald Neff | 18 | Son | Baker | Illinois |
| 12 | Ross Jones | 44 | Head | Engineer | Illinois |
| 13 | Olive Jones | 39 | Wife | — | Illinois |
| 14 | Marcella Shaw | 62 | Head | Seamstress | Illinois |
| 15 | Paul Sprinkle | 25 | Head | Manager | Illinois |
| 16 | Goldie Sprinkle | 25 | Wife | — | Illinois |
| 17 | Gloria Sprinkle | 1 | Daughter | — | Illinois |
| 18 | Sam Horverter | 63 | Head | — | Illinois |
| 19 | Nora Horverter | 58 | Wife | Waitress | Illinois |
| 20 | John Lasswell | 54 | Head | Laborer | Illinois |
| 21 | Alice Lasswell | 52 | Wife | — | Illinois |
| 22 | Harold Lasswell | 22 | Son | Laborer | Illinois |
| 23 | Ray Lasswell | 20 | Son | Laborer | Illinois |
| 24 | Georgia Lasswell | 16 | Son | New Worker | Illinois |
| 25 | Ray Rector | 53 | Head | Mechanic | Illinois |
| 26 | Chloe Rector | 46 | Wife | — | Illinois |
| 27 | Joe Williams | 62 | Head | Manager | Illinois |
| 28 | Elsie Williams | 56 | Wife | — | Illinois |
| 29 | Ray Murphy | 50 | Head | Truck Driver | Illinois |
| 30 | Jackie Murphy | 51 | Wife | — | Illinois |
| 31 | David Burrell | 68 | Head | — | Illinois |
| 32 | Josephine Burrell | 65 | Wife | — | Illinois |
| 33 | Bertil Burrell | 43 | Son | Miner | Illinois |
| 34 | Charles Day | 53 | Head | Manager | Illinois |
| 35 | Ruth Day | 47 | Wife | — | Iowa |
| 36 | Lewis Day | 25 | Son | Assistant Manager | Illinois |
| 37 | Jesse M. Long | 67 | Head | Manager | Illinois |
| 38 | Lydia Long | 60 | Wife | — | Illinois |
| 39 | Florence Long | 40 | Daughter | Teacher | Illinois |
| 40 | Mary K. Long THIS PERSON | 20 | Daughter | — | Illinois |
Pedigree Summary
Mary + 1 sibling
Gen 1 · 5 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)