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Jack Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lancaster-County, Nebraska
Our Model Tree links this Jack Martin across the 1930 and 1940 US Censuses in Lancaster-County, Nebraska (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 6-person household.
Age 18
b. ~1922
Male
Son
Born: Nebraska
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lancaster-County, Nebraska |
| Surname | Martin |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Nebraska |
| 1935 Residence (City) | Lincoln (city) |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | Hs 4 |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
| Township / Ward | Lincoln City |
| Est. Birth Year | ~1922 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Jack | Age | Birth yr |
|---|---|---|---|---|
| Robert Martin | Son | — | 21 | ~1919 |
| Marjorie Martin | Daughter | — | 16 | ~1924 |
| Hazel Martin | Spouse | — | 53 | ~1887 |
| O Martin | Head | — | 55 | ~1885 |
| Ross Martin | Son | — | 23 | ~1917 |
| Jack Martin | Son | — | 18 | ~1922 |
Census Appearances
1930
Lancaster, Nebraska
Son, age 8
Lancaster, Nebraska · implied b. ~1922 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Jack |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Indiana |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1940
Lancaster-County, Nebraska
Son, age 18
Lancaster-County, Nebraska · implied b. ~1922 — 6 household members
| Surname | Martin |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Nebraska |
| 1935 Residence (City) | Lincoln (city) |
| Class of Worker | 0 |
| Highest Grade | Hs 4 |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
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 Jack Martin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Jack Martin
Son · 1940 · age 18 · b. ~1922 · Nebraska
★ You are viewing this record
Sibling
Marjorie Martin
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Martin
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ross Martin
Sibling · 1940 · age 23
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 — Lancaster-County, Nebraska
Open full size
1940 US Federal Census — Lancaster-County, Nebraska
Page Contents
32 people indexed on this census page (nara:1940:m-t0627-02254-00141)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Emma Beckman | 35 | Lodger | Teacher | Nebraska |
| 42 | Antonio Lococo | 65 | Head | Owner | Italy |
| 43 | Frances Lococo | 41 | Wife | Partner | Nebraska |
| 44 | Marie Lococo | 25 | Daughter | Clerk | Nebraska |
| 45 | Marie Lococo | 30 | Servant | Housekeeper | Nebraska |
| 46 | Antonio Jr. Lococo | 26 | Son | Salesman | Nebraska |
| 47 | Joseph Lococo | 20 | Son | Salesman | Nebraska |
| 48 | Reuben Skoglund | 48 | Head | Architect | Minnesota |
| 49 | Agnes Skoglund | 46 | Wife | — | Nebraska |
| 50 | Gwendolyn Skoglund | 15 | Daughter | — | Illinois |
| 51 | Charles Skoglund | 12 | Son | — | Illinois |
| 52 | Cora B. Dana | 78 | Head | — | New York |
| 53 | Gladys Dana | 45 | Daughter | Teacher | Nebraska |
| 54 | Clara Brown | 67 | Sister | — | Nebraska |
| 55 | Edna M. Gabus | 43 | Lodger | Teacher | Nebraska |
| 56 | Cecile Snapp | 48 | Lodger | Stenographer | Colorado |
| 57 | Walter R. Johnson | 42 | Head | Attorney General | Nebraska |
| 58 | Mary Johnson | 37 | Wife | — | Pennsylvania |
| 59 | James M. Johnson | 14 | Daughter | — | Nebraska |
| 60 | Mavis Johnson | 11 | Daughter | — | Nebraska |
| 61 | Douglas Johnson | 9 | Son | — | Nebraska |
| 62 | Brady Johnson | 3 | Son | — | Nebraska |
| 63 | Evangeline Benson | 20 | Servant | Housekeeper | Nebraska |
| 64 | O. R. Martin | 55 | Head | Public Accountant | Iowa |
| 65 | Hazel H. Martin | 53 | Wife | — | Indiana |
| 66 | Ross Martin | 23 | Son | Accountant | Nebraska |
| 67 | Robert Martin | 21 | Son | — | Nebraska |
| 68 | Jack Martin THIS PERSON | 18 | Son | — | Nebraska |
| 69 | Marjorie Martin | 16 | Daughter | — | Nebraska |
| 70 | Helen Maxey | 52 | Head | — | Nebraska |
| 71 | Frank Maxey | 21 | Son | — | Nebraska |
| 72 | Marilyn Maxey | 19 | Daughter | — | Nebraska |
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)