MJ
Martha Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Mclennan-County, Texas
Our Model Tree links this Martha Johnson across the 1920, 1930 and 1940 US Censuses in Mclennan-County, Texas (XGBoost, ~Confirmed), with identified parents Robert & Emma — first a daughter (b.~1914), then head of a 4-person household.
Age 26
b. ~1914
Female
Daughter
Born: Texas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mclennan-County, Texas |
| Surname | Johnson |
| Given Name | Martha F. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Texas |
| 1935 Residence (City) | Waco city |
| 1935 Residence (County) | McLennan |
| Additional Details | |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1350 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
| Occupation | Teacher |
| Township / Ward | Waco City |
| Est. Birth Year | ~1914 |
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 Johnson | Daughter | — | 26 | ~1914 |
| Ellen Johnson | Daughter | — | 23 | ~1917 |
| Robert Johnson | Head | — | 66 | ~1874 |
| May Johnson | Spouse | — | 57 | ~1883 |
Census Appearances
1920
Mclennan, Texas
Daughter, age 5
Mclennan, Texas · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Martha Francis |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Texas |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Occupation | none |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
1930
Mclennan, Texas
Daughter, age 16
Mclennan, Texas · implied b. ~1914 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Martha F |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Texas |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Can Read/Write | Yes |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
1940
Mclennan-County, Texas
Daughter, age 26
Mclennan-County, Texas · implied b. ~1914 — 4 household members
| Surname | Johnson |
| Given Name | Martha F. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Texas |
| 1935 Residence (City) | Waco city |
| 1935 Residence (County) | McLennan |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1350 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
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 Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Robert Johnson (~0.92 confidence) and mother Emma Johnson (~0.92 confidence) and mother May Johnson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Johnson
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Emma Johnson
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
May Johnson
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Martha Johnson
Daughter · 1940 · age 26 · b. ~1914 · Texas
★ You are viewing this record
Sibling
Ellen Johnson
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 — Mclennan-County, Texas
Open full size
1940 US Federal Census — Mclennan-County, Texas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04100-00008)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jessie R. Doty | 47 | Head | Policeman | Texas |
| 42 | Lillian Q. Doty | 42 | Wife | — | Texas |
| 43 | J. R. Jr. Doty | 24 | Son | Asst Office | Texas |
| 44 | Bertie Q. Campbell | 50 | Head | Maid | Texas |
| 45 | Roy B. Alsbaugh | 50 | Head | Owner | Indiana |
| 46 | Omah Q. Alsbaugh | 46 | Wife | — | Arkansas |
| 47 | Ralph Alsbaugh | 19 | Son | — | Texas |
| 48 | Sam Alsbaugh | 17 | Son | — | Texas |
| 49 | Mrs. Estelle Smyth | 69 | Head | — | Texas |
| 50 | Sue Mrs. Bradley | 67 | Sister | — | Texas |
| 51 | Elizabeth Weiderman | 25 | Housekeeper | Housekeeper | Texas |
| 52 | Dr. L. S. Connalley | 62 | Head | Doctor | Texas |
| 53 | Clara Q. Connalley | 59 | Wife | — | Mississippi |
| 54 | Betsy C. Mancus | 32 | Daughter | Owner | Texas |
| 55 | Clarence Jr. Mancus | 7 | Son | — | Texas |
| 56 | Billy Connalley | 5 | Grandson | — | Texas |
| 57 | Billy Connalley | 2 | Grandson | — | Texas |
| 58 | Robert E. Johnson | 66 | Head | Salesman | Tennessee |
| 59 | May Emma Johnson | 57 | Wife | — | Tennessee |
| 60 | Martha F. Johnson THIS PERSON | 26 | Daughter | Teacher | Texas |
| 61 | Ellen L. Johnson | 23 | Daughter | Teacher | Texas |
| 62 | Dr. J. H. Broughton | 32 | Head | Owner | Texas |
| 63 | Thelma Broughton | 31 | Wife | Helper | Texas |
| 64 | Billie Jean Broughton | 11 | Daughter | — | Texas |
| 65 | Eunavene Schonert | 18 | Housekeeper | Housekeeper | Texas |
| 66 | Herman E. Hardinger | 31 | Head | Driver | Texas |
| 67 | Aretta Hardinger | 31 | Wife | Waitress | Texas |
| 68 | Major V. L. Lattimore | 46 | Head | Major | Texas |
| 69 | Ruby Lattimore | 44 | Wife | — | Texas |
| 70 | Betty Lattimore | 17 | Daughter | — | Oklahoma |
| 71 | John Henry Lattimore | 15 | Son | — | Oklahoma |
| 72 | — | None | — | — | — |
| 73 | Leonard Wells | 37 | Head | Pecan Specialist | Georgia |
| 74 | Margaret Wells | 33 | Wife | — | Georgia |
| 75 | Leonard W. Wells | 17 | Son | — | Mississippi |
| 76 | Maurice Wells | 10 | Daughter | — | Texas |
| 77 | James Hinchliffe | 23 | Boarder | Pecan Specialist | Texas |
| 78 | Ayden Baggett | 35 | Boarder | Pecan Specialist | Georgia |
| 79 | L. H. Heller | 75 | Head | Farmer | Texas |
| 80 | Ella Heller | 65 | Wife | — | Texas |
Pedigree Summary
Martha + 1 sibling
Gen 1 · 3 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)