LM
Lois Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Morgan-County, Indiana
Our Model Tree links this Lois Martin across the 1920, 1930 and 1940 US Censuses in Morgan-County, Indiana (XGBoost, ~Confirmed), with identified parents W & William — first a daughter (b.~1916), then head of a 4-person household.
Age 24
b. ~1916
Female
Daughter
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Morgan-County, Indiana |
| Surname | Martin |
| Given Name | Lois |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Jefferson Twp |
| 1935 Residence (County) | Morgan |
| Additional Details | |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Jefferson Twp |
| Est. Birth Year | ~1916 |
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 Lois | Age | Birth yr |
|---|---|---|---|---|
| Maggie Martin | Spouse | — | 56 | ~1884 |
| Lois Martin | Daughter | — | 24 | ~1916 |
| Gilbert Martin | Son | — | 35 | ~1905 |
| W Martin | Head | — | 60 | ~1880 |
Census Appearances
1920
Morgan, Indiana
Daughter, age 4
Morgan, Indiana · implied b. ~1916
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Martin |
| Given Name | Lois P. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Morgan, Indiana
Daughter, age 14
Morgan, Indiana · implied b. ~1916 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Lois P. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Morgan-County, Indiana
Daughter, age 24
Morgan-County, Indiana · implied b. ~1916 — 4 household members
| Surname | Martin |
| Given Name | Lois |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Jefferson Twp |
| 1935 Residence (County) | Morgan |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Lois Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father W Martin (~0.92 confidence) and father William Martin (~0.92 confidence) and mother Maggie Martin (~0.92 confidence) and mother Mamie Martin (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
W Martin
b. ~1880
Source father
● Household
· direct · ~0.92
Father
William Martin
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Maggie Martin
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Mamie Martin
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Lois Martin
Daughter · 1940 · age 24 · b. ~1916 · Indiana
★ You are viewing this record
Sibling
Gilbert Martin
Sibling · 1940 · age 35
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 — Morgan-County, Indiana
Open full size
1940 US Federal Census — Morgan-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01081-00272)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Quintela O. West | 44 | Wife | — | Indiana |
| 2 | James E. West | 7 | Son | — | Indiana |
| 3 | Bert Nelson | 65 | Boarder | — | Indiana |
| 4 | Perry Jackson | 60 | Head | Farmer | Indiana |
| 5 | Pamelia Jackson | 57 | Wife | — | Indiana |
| 6 | Ralph Jackson | 23 | Son | Farm Laborer | Indiana |
| 7 | Arnold R. Long | 38 | Head | Wheeler | Indiana |
| 8 | Marie Long | 22 | Wife | — | Indiana |
| 9 | Junior Long | 7 | Son | — | Indiana |
| 10 | William Long | 2 | Son | — | Indiana |
| 11 | Northeda Long | 2 | Daughter | — | Indiana |
| 12 | Sylvanus Champlin | 33 | Head | Painter | Indiana |
| 13 | Lavaun G. Champlin | 30 | Wife | — | Indiana |
| 14 | Dennis M. Champlin | 2 | Son | — | Indiana |
| 15 | Cecil G. Ferguson | 33 | Head | Farmer | Indiana |
| 16 | Susie Ferguson | 34 | Wife | — | Indiana |
| 17 | Junior Ferguson | 14 | Son | — | Indiana |
| 18 | Charles Ferguson | 13 | Son | — | Indiana |
| 19 | Lucibelle Ferguson | 10 | Daughter | — | Indiana |
| 20 | Robert Ferguson | 8 | Son | — | Indiana |
| 21 | Joseph Ferguson | 6 | Son | — | Indiana |
| 22 | Scott C. Bicknell | 52 | Head | Farmer | Indiana |
| 23 | Cora Bicknell | 51 | Wife | — | Kentucky |
| 24 | Cora Bicknell | 15 | Daughter | — | Indiana |
| 25 | W. D. Martin | 60 | Head | — | Indiana |
| 26 | Maggie G. Martin | 56 | Wife | — | Indiana |
| 27 | Gilbert Martin | 35 | Son | — | Indiana |
| 28 | Lois Martin THIS PERSON | 24 | Daughter | — | Indiana |
| 29 | William Crone | 52 | Head | Farmer | Indiana |
| 30 | Sara G. Crone | 45 | Wife | — | Indiana |
| 31 | Revan G. Kindred | 25 | Head | Common Labor | Indiana |
| 32 | Reva Kindred | 23 | Wife | — | Indiana |
| 33 | Wilma Kindred | 3 | Daughter | — | Indiana |
| 34 | Sherman Crone | 54 | Head | Common Labor | Indiana |
| 35 | Dale Howard | 42 | Head | Common Labor | Indiana |
| 36 | Stella G. Howard | 36 | Wife | — | Indiana |
| 37 | George Howard | 19 | Son | Farm Labor | Indiana |
| 38 | Anna Lee Howard | 16 | Daughter | House Work | Indiana |
| 39 | Rebeca Howard | 13 | Daughter | — | Indiana |
| 40 | Estelle Howard | 10 | Son | — | Indiana |
Pedigree Summary
Lois + 1 sibling
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)