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Mary Morrow — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Mary Morrow across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1885), then head of a 4-person household.
Age 55
b. ~1885
Female
Spouse
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Morrow |
| Given Name | Mary B. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh City |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Hours Worked | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1885 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Margaret Morrow | Other | — | 7 | ~1933 |
| Margaret Morrow | Daughter | — | 25 | ~1915 |
| Mary Morrow | Spouse | — | 55 | ~1885 |
| Wm Morrow | Head | — | 64 | ~1876 |
Census Appearances
1920
Allegheny, Pennsylvania
Spouse, age 35
Allegheny, Pennsylvania · implied b. ~1885 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Morrow |
| Given Name | Mary V |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Spouse, age 45
Allegheny, Pennsylvania · implied b. ~1885 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Morrow |
| Given Name | Mary V. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 27 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Spouse, age 55
Allegheny-County, Pennsylvania · implied b. ~1885 — 4 household members
| Surname | Morrow |
| Given Name | Mary B. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh City |
| 1935 Residence (County) | Allegheny |
| Hours Worked | 0 |
| Highest Grade | 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 Mary Morrow across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Morrow
Spouse · 1940 · age 55 · b. ~1885 · Pennsylvania
★ 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 — 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-t0627-03663-00635)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward Balacho | 16 | Son | — | Pennsylvania |
| 2 | Albert Balacho | 13 | Son | — | Pennsylvania |
| 3 | Betty Palys | 19 | Lodger | Waitress | Pennsylvania |
| 4 | Leo J. Mellott | 32 | Head | Cashier | Pennsylvania |
| 5 | Frances Mellott | 32 | Wife | — | Pennsylvania |
| 6 | Donald Mellott | 5 | Son | — | Pennsylvania |
| 7 | Mary J. Mellott | 4 | Daughter | — | Pennsylvania |
| 8 | Wm. T. Morrow | 64 | Head | Clerk | Pennsylvania |
| 9 | Mary B. Morrow THIS PERSON | 55 | Wife | — | Pennsylvania |
| 10 | Margaret Morrow | 25 | Daughter | Filing Clerk | Pennsylvania |
| 11 | Margaret M. Morrow | 7 | Granddaughter | — | Pennsylvania |
| 12 | Chas. J. Dezort | 47 | Head | Mail Clerk | Pennsylvania |
| 13 | Anna Marie Dezort | 46 | Wife | — | Pennsylvania |
| 14 | Donald Dezort | 9 | Son | — | Pennsylvania |
| 15 | Edward Mould | 40 | Head | Distributor | England |
| 16 | Edna M. Mould | 35 | Wife | — | England |
| 17 | Douglas Mould | 15 | Son | — | England |
| 18 | Conrad Mould | 10 | Son | — | Pennsylvania |
| 19 | Wm. Hill | 58 | Head | Brakeman | Northern Ireland |
| 20 | Anna Hill | 42 | Wife | — | Pennsylvania |
| 21 | Wm. Jr. Hill | 21 | Son | Apprentice Machinist | Pennsylvania |
| 22 | Earl B. Collins | 46 | Head | Organist & Music Teacher | New York |
| 23 | Virginia Collins | 46 | Wife | — | Arizona |
| 24 | Leland Collins | 17 | Son | — | Pennsylvania |
| 25 | June L. Collins | 16 | Daughter | — | Pennsylvania |
| 26 | Alexander Madjaric | 54 | Head | Proprietor | Yugo-Slavia |
| 27 | Maria Madjaric | 53 | Wife | — | Yugo-Slavia |
| 28 | Harriett Madjaric | None | Enos | 40 | 8 |
| 29 | Preston S. Robertson | 40 | Head | Correspondent | Pennsylvania |
| 30 | Letha A. Robertson | 40 | Wife | — | Ohio |
| 31 | David W. Robertson | 13 | Son | — | Pennsylvania |
| 32 | Russell Robertson | 10 | Son | — | Pennsylvania |
| 33 | Emile P. Madjaric | 30 | Head | Mechanic | Yugo-Slavia |
| 34 | Mary Madjaric | 26 | Wife | — | Pennsylvania |
| 35 | Robert A. Madjaric | 2 | Son | — | Pennsylvania |
| 36 | Paul Sestak | 31 | Head | Salesman | Pennsylvania |
| 37 | Mildred Sestak | 30 | Wife | — | Pennsylvania |
| 38 | Janet Sestak | 9 | Daughter | — | Pennsylvania |
| 39 | Paula Sestak | 4 | Daughter | — | Pennsylvania |
| 40 | G. Wm. Smith | 35 | Head | Owner | 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)