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Martha Long — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Macon-County, Illinois
Our Model Tree links this Martha Long across the 1920, 1930 and 1940 US Censuses in Macon-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1891), then head of a 4-person household.
Age 49
b. ~1891
Female
Spouse
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Macon-County, Illinois |
| Surname | Long |
| Given Name | Martha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Friends Creek Township |
| 1935 Residence (County) | Macon |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Friends Creek Township |
| Est. Birth Year | ~1891 |
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 Martha | Age | Birth yr |
|---|---|---|---|---|
| Martha Long | Spouse | — | 49 | ~1891 |
| Fain Long | Head | — | 48 | ~1892 |
| John Long | Son | — | 19 | ~1921 |
| Carol Long | Son | — | 16 | ~1924 |
Census Appearances
1920
Macon, Illinois
Spouse, age 27
Macon, Illinois · implied b. ~1893 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | Martha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Macon, Illinois
Other, age 38
Macon, Illinois · implied b. ~1892 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | Martha |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 12 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Macon-County, Illinois
Spouse, age 49
Macon-County, Illinois · implied b. ~1891 — 4 household members
| Surname | Long |
| Given Name | Martha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Friends Creek Township |
| 1935 Residence (County) | Macon |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 Martha Long across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Martha Long
Spouse · 1940 · age 49 · b. ~1891 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Macon-County, Illinois
Open full size
1940 US Federal Census — Macon-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00845-00289)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Norma Wallace | 11 | Daughter | — | Illinois |
| 2 | Barbara Wallace | 10 | Daughter | — | Illinois |
| 3 | Mary Wallace | 8 | Daughter | — | Illinois |
| 4 | Richard Wallace | 3 | Son | — | Illinois |
| 5 | Edwin Wallace | 1 | Son | — | Illinois |
| 6 | Fred Wallace | 47 | Head | Farmer | Illinois |
| 7 | Raya Wallace | 47 | Wife | — | Illinois |
| 8 | Fain Long | 48 | Head | Farmer | Tennessee |
| 9 | Martha Long THIS PERSON | 49 | Wife | — | Kentucky |
| 10 | John D. Long | 19 | Son | Clerk | Illinois |
| 11 | Carol Long | 16 | Son | — | Illinois |
| 12 | Charles H. Ater | 47 | Head | Farmer | Illinois |
| 13 | Marie Ater | 39 | Wife | — | Illinois |
| 14 | Charles E. Ater | 32 | Son | Laborer | Illinois |
| 15 | Norma Ater | 14 | Daughter | — | Illinois |
| 16 | June Ater | 13 | Daughter | — | Illinois |
| 17 | Warren Ater | 9 | Son | — | Illinois |
| 18 | Henry Justis | 58 | Head | Laborer | Tennessee |
| 19 | Ida Justis | 40 | Wife | — | Tennessee |
| 20 | Russell L. Ater | 31 | Head | Farmer | Illinois |
| 21 | Erma Ater | 31 | Wife | — | Illinois |
| 22 | Norma Ater | 13 | Daughter | — | Illinois |
| 23 | Verne Ater | 34 | Head | Farmer | Illinois |
| 24 | Opal M. Ater | 33 | Wife | — | Illinois |
| 25 | Bernadine Ater | 6 | Daughter | — | Illinois |
| 26 | Betty Ater | 5 | Daughter | — | Illinois |
| 27 | Billy Ater | 3 | Son | — | Illinois |
| 28 | Ray Nelson | 37 | Head | Farmer | Illinois |
| 29 | Edith Nelson | 38 | Wife | — | Illinois |
| 30 | Dorothy Nelson | 17 | Daughter | — | Illinois |
| 31 | Betty Nelson | 15 | Daughter | — | Illinois |
| 32 | Jack Nelson | 5 | Son | — | Illinois |
| 33 | Robert Nelson | 1 | Son | — | Illinois |
| 34 | Chris Walge | 65 | Head | Retired Farmer | Germany |
| 35 | Louis Kopp | 63 | Head | Farmer | Kansas |
| 36 | Lillie Kopp | 53 | Wife | — | Indiana |
| 37 | Robert Mitchell | 32 | Head | Carpenter | Illinois |
| 38 | Dovie Mitchell | 28 | Wife | — | Illinois |
| 39 | Joan Mitchell | 5 | Daughter | — | Illinois |
| 40 | James C. Turner | 27 | Head | Farmer | Kentucky |
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)