MR
Mary Ritter — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Mary Ritter across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 9-person household.
Age 19
b. ~1921
Female
Daughter
Born: Georgia
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Ritter |
| Given Name | Mary Lee |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Georgia |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Houseworker |
| Industry | Private Family |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 12 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
| Occupation | Houseworker |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1921 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Yvonne Ritter | Daughter | — | 4 | ~1936 |
| Helma Ritter | Daughter | — | 14 | ~1926 |
| Kenneth Ritter | Son | — | 6 | ~1934 |
| Mary Ritter | Daughter | — | 19 | ~1921 |
| Ora Ritter | Daughter | — | 8 | ~1932 |
| Lucille Ritter | Spouse | — | 41 | ~1899 |
| Leroy Ritter | Son | — | 10 | ~1930 |
| Carmel Ritter | Daughter | — | 12 | ~1928 |
| Leroy Ritter | Head | — | 48 | ~1892 |
Census Appearances
1930
Allegheny, Pennsylvania
Daughter, age 8
Allegheny, Pennsylvania · implied b. ~1922 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ritter |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Georgia |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | Georgia |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
1940
Allegheny-County, Pennsylvania
Daughter, age 19
Allegheny-County, Pennsylvania · implied b. ~1921 — 9 household members
| Surname | Ritter |
| Given Name | Mary Lee |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Georgia |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Occupation | Houseworker |
| Industry | Private Family |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 12 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
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 Ritter across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Ritter
Daughter · 1940 · age 19 · b. ~1921 · Pennsylvania
★ You are viewing this record
Sibling
Ora Ritter
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leroy Ritter
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carmel Ritter
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kenneth Ritter
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Yvonne Ritter
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helma Ritter
Sibling · 1940 · age 14
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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03654-00423)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ervin Hawkins | 34 | Head | Baggage Liberman | Texas |
| 42 | Georgetta Hawkins | 30 | Wife | — | Pennsylvania |
| 43 | Edmonia Hawkins | 9 | Daughter | — | Pennsylvania |
| 44 | James E. Hawkins | 7 | Son | — | Pennsylvania |
| 45 | Virginia M. Hawkins | 5 | Daughter | — | Pennsylvania |
| 46 | Charles N. Hawkins | 3 | Son | — | Pennsylvania |
| 47 | Georgetta M. Hawkins | 0 | Daughter | — | Pennsylvania |
| 48 | Andrew Byrd | 42 | Head | Laborer | Georgia |
| 49 | Mattie Byrd | 42 | Wife | — | Alabama |
| 50 | Charles Shelton | 76 | Head | — | Virginia |
| 51 | Edmonia Shelton | 52 | Wife | Seamstress | Virginia |
| 52 | James Shelton | 16 | Son | — | Pennsylvania |
| 53 | Hazel M. Cavell | 42 | Head | — | Canada |
| 54 | Frances Ford | 34 | Head | — | Pennsylvania |
| 55 | Edmonia Murphy | 13 | Daughter | — | Pennsylvania |
| 56 | Charles Ford | 2 | Son | — | Pennsylvania |
| 57 | Horace Brown | 44 | Head | Butler | Kentucky |
| 58 | Viola Brown | 32 | Wife | Maid | Pennsylvania |
| 59 | Frances Brown | 14 | Daughter | — | Pennsylvania |
| 60 | Bertha Brown | 13 | Daughter | — | Pennsylvania |
| 61 | James Branham | 67 | Brother-in-law | Laborer | Virginia |
| 62 | Bertha Branham | 61 | Mother-in-law | — | Virginia |
| 63 | Luke Logan | 50 | Head | Laborer | Georgia |
| 64 | James Brown | 60 | Head | Laborer | Alabama |
| 65 | Pattie Brown | 56 | Wife | — | Alabama |
| 66 | Leroy Ritter | 48 | Head | Proprietor | South Carolina |
| 67 | Lucille Ritter | 41 | Wife | Houseworker | Georgia |
| 68 | Mary Lee Ritter THIS PERSON | 19 | Daughter | Houseworker | Georgia |
| 69 | Helma Ritter | 14 | Daughter | — | Pennsylvania |
| 70 | Carmel Ritter | 12 | Daughter | — | Pennsylvania |
| 71 | Leroy Ritter | 10 | Son | — | Pennsylvania |
| 72 | Ora Ritter | 8 | Daughter | — | Pennsylvania |
| 73 | Kenneth Ritter | 6 | Son | — | Pennsylvania |
| 74 | Yvonne Ritter | 4 | Daughter | — | Pennsylvania |
| 75 | Elizabeth Harris | 40 | Head | Cook | Virginia |
| 76 | Elizabeth Harris | 16 | Daughter | — | Pennsylvania |
| 77 | Jessie Page | 25 | Daughter | — | Pennsylvania |
| 78 | Sara Diuguid | 23 | Daughter | Dish Washer | Pennsylvania |
| 79 | Cherry Page | 11 | Granddaughter | — | Pennsylvania |
| 80 | Braddock Edward | 9 | Grandson | — | Pennsylvania |
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)