MD
Mary Dolan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Erie-County, New York
Our Model Tree links this Mary Dolan across the 1930 and 1940 US Censuses in Erie-County, New York (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 6-person household.
Age 18
b. ~1922
Female
Daughter
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Erie-County, New York |
| Surname | Dolan |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Buffalo city |
| 1935 Residence (County) | Erie |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | Buffalo City |
| Est. Birth Year | ~1922 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Patricia Dolan | Daughter | — | 15 | ~1925 |
| Mary Dolan | Daughter | — | 18 | ~1922 |
| Catherine Dolan | Daughter | — | 10 | ~1930 |
| Ellen Dolan | Spouse | — | 49 | ~1891 |
| Charles Dolan | Son | — | 16 | ~1924 |
| Charles Dolan | Head | — | 51 | ~1889 |
Census Appearances
1930
Erie, New …
Daughter, age 8
Erie, New York · implied b. ~1922 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dolan |
| Given Name | Mary J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | none |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Erie-County, New …
Daughter, age 18
Erie-County, New York · implied b. ~1922 — 6 household members
| Surname | Dolan |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Buffalo city |
| 1935 Residence (County) | Erie |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 Dolan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Dolan
Daughter · 1940 · age 18 · b. ~1922 · New York
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Sibling
Charles Dolan
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Dolan
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Dolan
Sibling · 1940 · age 10
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 — 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-t0627-02824-00283)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Simford Dodd | 78 | Head | — | New Jersey |
| 42 | Mary Dodd | 52 | Wife | — | France |
| 43 | John Sweeney | 28 | Head | Patrolman | New York |
| 44 | Elizabeth Sweeney | 24 | Wife | — | New York |
| 45 | Elizabeth J. Sweeney | 7 | Daughter | — | New York |
| 46 | Harold Goold | 34 | Head | Foreman | Canada English |
| 47 | Margaret Goold | 30 | Wife | — | New York |
| 48 | Harold Jr. Goold | 11 | Son | — | New York |
| 49 | Walter Zeller | 50 | Head | Machinist | New York |
| 50 | Eleanor Zeller | 45 | Wife | — | New York |
| 51 | Charles D. Buck | 26 | Head | Sales Clerk | New York |
| 52 | Helen Buck | 23 | Wife | — | New York |
| 53 | Alberta Hayward | 52 | Mother | — | New York |
| 54 | John Mcnamara | 37 | Head | Steel Worker | Ireland Free State |
| 55 | Margaret M. Mcnamara | 35 | Wife | — | New York |
| 56 | Margaret Mcnamara | 2 | Daughter | — | New York |
| 57 | Seland Potter | 48 | Head | Train Man | Canada English |
| 58 | Melva Potter | 31 | Wife | — | Pennsylvania |
| 59 | Richard Potter | 11 | Son | — | New York |
| 60 | James Potter | 10 | Son | — | New York |
| 61 | Joanne Potter | 8 | Daughter | — | New York |
| 62 | Donnarie Potter | 6 | Daughter | — | New York |
| 63 | Patricia J. Potter | 4 | Daughter | — | New York |
| 64 | Charles H. Potter | 2 | Son | — | New York |
| 65 | John Rubeck | 53 | Head | Carpenter | New York |
| 66 | Lena E. Rubeck | 51 | Wife | — | Wisconsin |
| 67 | Homer Rubeck | 20 | Son | Stock Clerk | Michigan |
| 68 | Charles J. Dolan | 51 | Head | Material Inspector | Pennsylvania |
| 69 | Ellen H. Dolan | 49 | Wife | — | West Virginia |
| 70 | Mary J. Dolan THIS PERSON | 18 | Daughter | — | New York |
| 71 | Charles J. Jr. Dolan | 16 | Son | — | New York |
| 72 | Patricia Dolan | 15 | Daughter | — | New York |
| 73 | Catherine Dolan | 10 | Daughter | — | New York |
| 74 | Jacob Yonder | 60 | Head | Cooper | Ohio |
| 75 | Bessie Yonder | 56 | Wife | — | New Jersey |
| 76 | Jacob Jr. Yonder | 32 | Son | Mach. Hand | New Jersey |
| 77 | Lorraine Yonder | 19 | Daughter | — | New York |
| 78 | Bertha Yonder | 15 | Daughter | — | New York |
| 79 | John Drumet | 74 | Head | — | Germany |
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)