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Martha Mitchell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Martha Mitchell across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 6-person household.
Age 15
b. ~1925
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Mitchell |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh City |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Highest Grade | S 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1925 |
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 Martha | Age | Birth yr |
|---|---|---|---|---|
| Mary Mitchell | Daughter | — | 5 | ~1935 |
| Martha Mitchell | Daughter | — | 15 | ~1925 |
| Katharine Mitchell | Spouse | — | 45 | ~1895 |
| Patricia Mitchell | Daughter | — | 8 | ~1932 |
| John Mitchell | Son | — | 11 | ~1929 |
| Charles Mitchell | Head | — | 49 | ~1891 |
Census Appearances
1930
Allegheny, Pennsylvania
Daughter, age 5
Allegheny, Pennsylvania · implied b. ~1925 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mitchell |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Connecticut |
| Mother's Birthplace | Kentucky |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Daughter, age 15
Allegheny-County, Pennsylvania · implied b. ~1925 — 6 household members
| Surname | Mitchell |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh City |
| 1935 Residence (County) | Allegheny |
| Highest Grade | S 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Mitchell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Martha Mitchell
Daughter · 1940 · age 15 · b. ~1925 · Pennsylvania
★ You are viewing this record
Sibling
Mary Mitchell
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Mitchell
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mitchell
Sibling · 1940 · age 11
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
37 people indexed on this census page (nara:1940:m-t0627-03669-00311)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lois Krauter | 8 | Daughter | — | Pennsylvania |
| 3 | Herbert Glenn | 40 | Head | Clerk | Pennsylvania |
| 4 | Violet Glenn | 37 | Wife | — | England |
| 5 | Herbert Jr. Glenn | 12 | Son | — | Pennsylvania |
| 6 | Beverly Glenn | 10 | Daughter | — | Pennsylvania |
| 7 | Audrey Glenn | 6 | Daughter | — | Pennsylvania |
| 8 | John Lewis | 56 | Head | Cost Accountant | Pennsylvania |
| 9 | Stella Lewis | 55 | Wife | — | Pennsylvania |
| 10 | John Jr. Lewis | 18 | Son | — | Pennsylvania |
| 12 | Elizabeth Sukes | 31 | Head | Waitress | Pennsylvania |
| 13 | Wilson Brown | 36 | Head | Cab Driver | Pennsylvania |
| 14 | Evelyn Morrell | 34 | Wife | — | Pennsylvania |
| 15 | Clifford Morrell | 35 | Head | Inspector | Pennsylvania |
| 16 | Virginia Morrell | 11 | Daughter | — | Pennsylvania |
| 17 | Audrey Morrell | 8 | Daughter | — | Pennsylvania |
| 18 | Charles A. Mitchell | 49 | Head | Sign Inspector | Pennsylvania |
| 19 | Katharine Mitchell | 45 | Wife | — | Pennsylvania |
| 20 | Martha Mitchell THIS PERSON | 15 | Daughter | — | Pennsylvania |
| 21 | John Mitchell | 11 | Son | — | Pennsylvania |
| 22 | Patricia Mitchell | 8 | Daughter | — | Pennsylvania |
| 23 | Mary Mitchell | 5 | Daughter | — | Pennsylvania |
| 24 | John Adams | 52 | Head | Operator | Pennsylvania |
| 25 | Ida Adams | 53 | Wife | — | Pennsylvania |
| 26 | Hulda Herrle | 39 | Head | — | England |
| 27 | Joseph Herrle | 42 | Son | Saw Filer | Pennsylvania |
| 28 | James Herrle | 15 | Son | — | Pennsylvania |
| 29 | Olva Herrle | 12 | Daughter | — | Pennsylvania |
| 30 | James Kilty | 63 | Boarder | — | Pennsylvania |
| 31 | J. J. Ryan | 52 | Head | Steam Fitters Helper | Pennsylvania |
| 32 | Marie Ryan | 50 | Wife | — | Pennsylvania |
| 33 | Ann Mrs. Larson | 35 | Roomer | Beauty Oprtr | Pennsylvania |
| 35 | Raymond H. Gallivan | 45 | Head | Photographer | Illinois |
| 36 | Lucille Gallivan | 42 | Wife | — | Illinois |
| 37 | Jack R. Gallivan | 25 | Son | Salesman | Illinois |
| 38 | Richard H. Gallivan | 19 | Son | Clerk | Illinois |
| 39 | Peter Hunter | 52 | Head | Boiler Maker | Scotland |
| 40 | Mary O'Brien | 48 | Sister | — | Scotland |
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)