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Mary Monroe — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Erie-County, New York
Our Model Tree links this Mary Monroe across the 1920, 1930 and 1940 US Censuses in Erie-County, New York (XGBoost, ~Confirmed) — first a spouse (b.~1880), then head of a 5-person household.
Age 60
b. ~1880
Female
Spouse
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Erie-County, New York |
| Surname | Monroe |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Buffalo City |
| 1935 Residence (County) | Erie |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Township / Ward | Buffalo City |
| Est. Birth Year | ~1880 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| William Key | Other | — | 40 | ~1900 |
| William Key | Other | — | 10 | ~1930 |
| George Monroe | Head | — | 62 | ~1878 |
| Evelyn Key | Daughter | — | 35 | ~1905 |
| Mary Monroe | Spouse | — | 60 | ~1880 |
Census Appearances
1920
Erie, New …
Spouse, age 41
Erie, New York · implied b. ~1879 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Munro |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1902 |
| Naturalization Status | Alien |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Clerk |
| Industry | Bakery |
| Class of Worker | S |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Scotch |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1930
Erie, New …
Spouse, age 52
Erie, New York · implied b. ~1878 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Munro |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1911 |
| Age at First Marriage | 24 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Erie-County, New …
Spouse, age 60
Erie-County, New York · implied b. ~1880 — 5 household members
| Surname | Monroe |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Buffalo City |
| 1935 Residence (County) | Erie |
| Naturalization Status | Naturalized |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 Monroe 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 Monroe
Spouse · 1940 · age 60 · b. ~1880 · New York
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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 — Erie-County, New York
Open full size
1940 US Federal Census — Erie-County, New York
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-02824-00313)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Kathleen Nona | 21 | Daughter | Sales Girl | New York |
| 42 | John Nona | 11 | Son | — | New York |
| 43 | Frederick Giles | 50 | Head | Line Man | New York |
| 44 | Louise Giles | 51 | Wife | — | New York |
| 45 | Howard Giles | 23 | Son | Advertising | New York |
| 46 | Louise Giles | 15 | Daughter | — | New York |
| 47 | Frank J. Leary | 50 | Head | Clerical | New York |
| 48 | Evelyn Leary | 49 | Wife | — | New York |
| 49 | Jean Leary | 18 | Daughter | Clerk | New York |
| 50 | Marjorie Leary | 16 | Daughter | — | New York |
| 51 | Marie Leary | 13 | Daughter | — | New York |
| 52 | William Leary | 8 | Son | — | New York |
| 53 | Rose Hughes | 81 | Mother-in-law | — | New York |
| 54 | Leo F. Cooley | 48 | Head | Investigator | New York |
| 55 | Mable A. Cooley | 48 | Wife | — | Pennsylvania |
| 56 | James E. Cooley | 15 | Son | — | New York |
| 57 | Mable C. Cooley | 13 | Daughter | — | New York |
| 58 | George Monroe | 62 | Head | Watchman | Scotland |
| 59 | Mary Monroe THIS PERSON | 60 | Wife | — | Scotland |
| 60 | William Key | 40 | Son-in-law | Janitor | Scotland |
| 61 | Evelyn Key | 35 | Daughter | — | Scotland |
| 62 | William G. Key | 10 | Grandson | — | New York |
| 63 | Peter Schiran | 29 | Head | Janitor | Greece |
| 64 | Constance A. Schiran | 26 | Wife | — | New York |
| 65 | John Schiran | 2 | Son | — | New York |
| 66 | Goldia Kontos | 50 | Sister-in-law | Matron | Greece |
| 67 | Anne Kontos | 24 | Niece | Cashier | New York |
| 68 | Jim Kontos | 15 | Brother-in-law | — | Greece |
| 69 | Thomas Ryan | 34 | Head | Inspector | New York |
| 70 | Elizabeth Ryan | 24 | Wife | — | Connecticut |
| 71 | Dorothy Ryan | 2 | Daughter | — | New York |
| 72 | Grace Ryan | 0 | Daughter | — | New York |
| 73 | John Ryan | 67 | Father | Shoe Repair | New York |
| 74 | Jack Ryan | 28 | Brother | Stripper | New York |
| 75 | Jennie Morney | 60 | Servant | House Work | New York |
| 76 | John M. Craig | 49 | Head | General Agent | New York |
| 77 | Ruth Craig | 47 | Wife | — | New York |
| 78 | John Craig | 17 | Son | — | New York |
| 79 | Theodore Craig | 14 | Son | — | New York |
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)