MR
Mary Richardson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this Mary Richardson across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed), with identified parents William & Maud — first a spouse (b.~1918), then head of a 5-person household.
Age 22
b. ~1918
Female
Spouse
Born: Indiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Richardson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis City |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Hours Worked | 0 |
| Highest Grade | Ps 8 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Indianapolis City |
| Est. Birth Year | ~1918 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Isabel Arthur | Daughter | — | 22 | ~1918 |
| Melvin Richardson | Head | — | 37 | ~1903 |
| Virgil Arthur | Other | — | 23 | ~1917 |
| Ronald Peters | Other | — | 1 | ~1939 |
| Mary Richardson | Spouse | — | 22 | ~1918 |
Census Appearances
1920
Marion, Indiana
Daughter, age 1
Marion, Indiana · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Richardson |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | none |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Marion, Indiana
Daughter, age 11
Marion, Indiana · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Richardson |
| Given Name | Mary A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Spouse, age 22
Marion-County, Indiana · implied b. ~1918 — 5 household members
| Surname | Richardson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis City |
| 1935 Residence (County) | Marion |
| Hours Worked | 0 |
| Highest Grade | Ps 8 |
| 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 Mary Richardson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Richardson (~0.92 confidence) and mother Maud Richardson (~0.92 confidence) and father Edward Richardson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Richardson
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Maud Richardson
b. ~1888
Source mother
● Household
· direct · ~0.92
Father
Edward Richardson
b. ~1890
Source father
● Household
· direct · ~0.92
This person
Anchor record
Mary Richardson
Spouse · 1940 · age 22 · b. ~1918 · Indiana
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Marion-County, Indiana
Open full size
1940 US Federal Census — Marion-County, Indiana
Page Contents
22 people indexed on this census page (nara:1940:m-t0627-01131-00847)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anna Kalman | 59 | Head | — | Germany |
| 2 | Anna Mcmullan | 64 | Aunt | Housekeeper | Indiana |
| 3 | Carrie Dobson | 82 | Head | — | Indiana |
| 4 | Georgia Cox | 28 | Daughter | — | Indiana |
| 5 | James E Pittsworth | 75 | Head | — | Indiana |
| 6 | Mattie Pittsworth | 70 | Wife | — | Indiana |
| 7 | Melvin T Richardson | 37 | Head | Carpenter | Indiana |
| 8 | Mary Richardson THIS PERSON | 22 | Wife | — | Indiana |
| 9 | Virgil Arthur | 23 | Son-in-law | Cab-Driver | Indiana |
| 10 | Isabel Arthur | 22 | Daughter | — | Kentucky |
| 11 | Ronald Peters | 1 | Grand-son | — | Indiana |
| 12 | Carl A Huth | 30 | Head | Pressman | Indiana |
| 13 | Kathryn Huth | 31 | Wife | Press Feeder | Indiana |
| 14 | George B Johnson | 44 | Head | Brick Layer | Indiana |
| 15 | Lucille Johnson | 41 | Wife | — | Indiana |
| 16 | Marjorie M Johnson | 17 | Daughter | — | Indiana |
| 17 | Leslie S Johnson | 15 | Son | — | Indiana |
| 18 | Julia Johnson | 17 | Daughter | — | Indiana |
| 19 | Velmer Greer | 52 | Head | Laborer | Indiana |
| 20 | Victoria Greer | 44 | Wife | — | Indiana |
| 21 | Lilbourn Faltony | 54 | Lodger | — | Kentucky |
| 22 | Anthony Beaver Lott | 28 | Lodger | Salesman | Indiana |
Pedigree Summary
Mary
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)