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Mary Mcnally — 1940 US Census Record
Model Tree available1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this Mary Mcnally across the 1920, 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed), with identified parents Patrick & Margaret — first a daughter (b.~1918), then head of a 3-person household.
Age 22
b. ~1918
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | McNally |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Additional Details | |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | San Francisco |
| 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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Rose Mcnally | Daughter | — | 24 | ~1916 |
| Patrick Mcnally | Head | — | 62 | ~1878 |
| Mary Mcnally | Daughter | — | 22 | ~1918 |
Census Appearances
1920
San Francisco, …
Daughter, age 1
San Francisco, California · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McNally |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Ireland |
| Mother's Birthplace | California |
| Occupation | none |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
San Francisco, …
Daughter, age 12
San Francisco, California · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McNally |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Daughter, age 22
San-Francisco-County, California · implied b. ~1918 — 3 household members
| Surname | McNally |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 Mcnally across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Patrick Mcnally (~0.92 confidence) and mother Margaret Mcnally (~0.92 confidence) and mother Margaret Mcnally (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Patrick Mcnally
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Margaret Mcnally
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Margaret Mcnally
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Mcnally
Daughter · 1940 · age 22 · b. ~1918 · California
★ You are viewing this record
Sibling
Rose Mcnally
Sibling · 1940 · age 24
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 — San-Francisco-County, California
Open full size
1940 US Federal Census — San-Francisco-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00310-00172)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert R. Benson | 40 | Head | Carpenter | New York |
| 2 | Margaret O. Benson | 46 | Wife | Waitress | Kansas |
| 3 | Maria G. Isola | 79 | Head | — | Italy |
| 4 | Paul Isola | 54 | Son | — | California |
| 5 | Raymond Isola | 39 | Son | Real Estate | California |
| 6 | Edward Macmillan | 28 | Head | Service Man | California |
| 7 | Marion Macmillan | 28 | Wife | Trained Nurse | California |
| 8 | Harry E. Hutchinson | 52 | Head | Janitor | California |
| 9 | Anne M. Hutchinson | 49 | Wife | — | Oregon |
| 10 | Helen T. Mccann | 51 | Head | — | Michigan |
| 11 | James J. Mccann | 22 | Son | Laborer | California |
| 12 | Helen F. Mccann | 21 | Daughter | — | California |
| 13 | Armando Berti | 51 | Head | Grocery Clerk | Italy |
| 14 | Mariana Berti | 49 | Wife | Canning Worker | Italy |
| 15 | Duilio M. Berti | 24 | Son | Garment Cutter | California |
| 16 | Bruno P. Berti | 22 | Son | Coach Cleaner | California |
| 17 | Natalia Mazzoni | 81 | In-law | — | Italy |
| 18 | Stephen L. Smith | 38 | Head | Hotel Clerk | England |
| 19 | Hazel M. Smith | 36 | Wife | — | California |
| 20 | Susan E. Smith | 3 | Daughter | — | California |
| 21 | George Bunslow | 35 | Head | Conductor | New York |
| 22 | Elsie Bunslow | 31 | Wife | Stenographer | Washington |
| 23 | Bette L. Rae | 12 | Stepdaughter | — | California |
| 24 | Henry Schroeder | 67 | Head | Fur Dresser | Minnesota |
| 25 | Lena D. Schroeder | 56 | Wife | — | Wisconsin |
| 26 | Arthur Schroeder | 43 | Son | Fur Dresser | New York |
| 27 | Edna Schroeder | 40 | Daughter | — | New York |
| 28 | Patrick Mcnally | 62 | Head | — | Ireland |
| 29 | Rose Mcnally | 24 | Daughter | Stenographer | California |
| 30 | Mary Mcnally THIS PERSON | 22 | Daughter | — | California |
| 31 | Alvin Johnson | 24 | Head | Gen'L Clerk | California |
| 32 | Florence Johnson | 22 | Wife | Secretary | California |
| 33 | William Cordes | 43 | Head | Chauffeur | California |
| 34 | Elizabeth Cordes | 42 | Wife | Stenographer | Iowa |
| 35 | Mary Cammina | 66 | Head | — | Massachusetts |
| 36 | Joseph E. Flaherty | 28 | Head | Printer | California |
| 37 | Margaret L. Flaherty | 27 | Wife | — | California |
| 38 | Nancy Flaherty | 1 | Daughter | — | California |
| 39 | Arthur E. Falk | 35 | Head | Stevedore | Sweden |
| 40 | Clara I. Falk | 26 | Wife | — | Washington |
Pedigree Summary
Mary + 1 sibling
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)