MC
Mary Conroy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Mary Conroy across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1892), then head of a 9-person household.
Age 48
b. ~1892
Female
Head
Born: Irish Free State
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Conroy |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Widowed |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Naturalization Status | Alien |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same House |
| Birthplace (normalized) | irish free state |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1892 |
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 |
|---|---|---|---|---|
| Cecelia Conroy | Daughter | — | 17 | ~1923 |
| Mary Conroy | Daughter | — | 22 | ~1918 |
| Catherine Conroy | Daughter | — | 20 | ~1920 |
| William Conroy | Son | — | 24 | ~1916 |
| Lawrence Conroy | Son | — | 14 | ~1926 |
| Regis Conroy | Son | — | 12 | ~1928 |
| Martin Conroy | Son | — | 25 | ~1915 |
| Mary Conroy | Head | — | 48 | ~1892 |
| Agnes Conroy | Daughter | — | 11 | ~1929 |
Census Appearances
1930
Allegheny, Pennsylvania
Spouse, age 38
Allegheny, Pennsylvania · implied b. ~1892 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Conroy |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| Naturalization Status | Naturalized |
| Year of Immigration | 1910 |
| Age at First Marriage | 18 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birthplace (normalized) | irish free state |
1940
Allegheny-County, Pennsylvania
Head, age 48
Allegheny-County, Pennsylvania · implied b. ~1892 — 9 household members
| Surname | Conroy |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Widowed |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Naturalization Status | Alien |
| Class of Worker | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same House |
| Birthplace (normalized) | irish free state |
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 Conroy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Conroy
Head · 1940 · age 48 · b. ~1892 · Pennsylvania
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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-t0627-03653-00295)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Mooney | 57 | Head | — | Pennsylvania |
| 2 | Katherine Mooney | 25 | Daughter | Sales Girl | Pennsylvania |
| 3 | James Mooney | 22 | Son | Laborer | Pennsylvania |
| 4 | Rose Mooney | 15 | Daughter | — | Pennsylvania |
| 5 | Catherine O'Rourke | 53 | Sister | Maid | Pennsylvania |
| 6 | Rita O'Rourke | 18 | Niece | Librarian | Pennsylvania |
| 7 | Henry Kelly | 46 | Head | Laborer | Pennsylvania |
| 8 | Margaret Kelly | 41 | Wife | — | Pennsylvania |
| 9 | Francis Kelly | 24 | Son | Asst Physical Ed. Instructor | Pennsylvania |
| 10 | Ida May Kelly | 20 | Daughter | Investigator | Pennsylvania |
| 11 | John Kelly | 13 | Son | — | Pennsylvania |
| 12 | Daniel Kelly | 12 | Son | — | Pennsylvania |
| 13 | Walter Walker | 26 | Head | Clerk-Fire | Pennsylvania |
| 14 | Marion Walker | 22 | Wife | — | Pennsylvania |
| 15 | Marion Walker | 2 | Daughter | — | Pennsylvania |
| 16 | Ida Brennan | 63 | Head | — | Sweden |
| 17 | Theophilous Evans | 64 | Head | Driller | Wales |
| 18 | Ellen Evans | 61 | Wife | — | England |
| 19 | Ruth Evans | 22 | Daughter | Elevator Girl | Pennsylvania |
| 20 | Sarah Evans | 20 | Daughter | Sustiner|Sustener | Pennsylvania |
| 21 | Edward Evans | 14 | Son | — | Pennsylvania |
| 22 | Sister Loshia | 58 | Sister | Janitress | Wales |
| 23 | Mary Conroy THIS PERSON | 48 | Head | — | Irish Free State |
| 24 | Martin Conroy | 25 | Son | Crane Operator | Pennsylvania |
| 25 | William Conroy | 24 | Son | Laborer | Pennsylvania |
| 26 | Mary Conroy | 22 | Daughter | Clerk-File | Pennsylvania |
| 27 | Catherine Conroy | 20 | Daughter | New Worker | Pennsylvania |
| 28 | Cecelia Conroy | 17 | Daughter | — | Pennsylvania |
| 29 | Lawrence Conroy | 14 | Son | — | Pennsylvania |
| 30 | Regis Conroy | 12 | Son | — | Pennsylvania |
| 31 | Agnes Conroy | 11 | Daughter | — | Pennsylvania |
| 32 | Michael N Mueller | 46 | Head | Laborer | Pennsylvania |
| 33 | Mathilda Mueller | 39 | Wife | — | Pennsylvania |
| 34 | Joseph Mueller | 16 | Son | — | Pennsylvania |
| 35 | Mathilda Agnes Mueller | 5 | Daughter | — | Pennsylvania |
| 36 | Rose Gasloff | 35 | Head | Seamstress | Pennsylvania |
| 37 | Jerry Gasloff | 18 | Son | — | Pennsylvania |
| 38 | Harold Gasloff | 14 | Son | — | Pennsylvania |
| 39 | Harry Harris | 39 | Lodger | Watchman | New York |
| 40 | Roseanna Murphy | 63 | Head | — | Northern Ireland |
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)