MW
Mary Walsh — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cumberland-County, Maine
Our Model Tree links this Mary Walsh across the 1930 and 1940 US Censuses in Cumberland-County, Maine (XGBoost, ~Confirmed) — first a daughter (b.~1918), then head of a 9-person household.
Age 22
b. ~1918
Female
Daughter
Born: Maine
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cumberland-County, Maine |
| Surname | Walsh |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Maine |
| 1935 Residence (City) | Portland city |
| 1935 Residence (County) | Cumberland |
| Additional Details | |
| Occupation | Trained nurse |
| Industry | Private duty |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 500 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
| Occupation | Trained Nurse |
| Township / Ward | Portland City |
| 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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Barbara Walsh | Daughter | — | 11 | ~1929 |
| Patricia Walsh | Daughter | — | 9 | ~1931 |
| Margaret Walsh | Daughter | — | 24 | ~1916 |
| Mary Walsh | Daughter | — | 22 | ~1918 |
| Patrick Walsh | Head | — | 48 | ~1892 |
| Edward Walsh | Son | — | 8 | ~1932 |
| John Walsh | Son | — | 14 | ~1926 |
| Joseph Walsh | Son | — | 13 | ~1927 |
| Mary Walsh | Spouse | — | 46 | ~1894 |
Census Appearances
1930
Cumberland, Maine
Daughter, age 11
Cumberland, Maine · implied b. ~1919 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Walsh |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maine |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1940
Cumberland-County, Maine
Daughter, age 22
Cumberland-County, Maine · implied b. ~1918 — 9 household members
| Surname | Walsh |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Maine |
| 1935 Residence (City) | Portland city |
| 1935 Residence (County) | Cumberland |
| Occupation | Trained nurse |
| Industry | Private duty |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 500 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
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 Walsh across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Walsh
Daughter · 1940 · age 22 · b. ~1918 · Maine
★ You are viewing this record
Sibling
John Walsh
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Walsh
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Walsh
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Walsh
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Walsh
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Walsh
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 — Cumberland-County, Maine
Open full size
1940 US Federal Census — Cumberland-County, Maine
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01476-00402)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Arthur Shaw | 43 | Head | Machinist Helper | Maine |
| 2 | Bertha Shaw | 40 | Wife | — | Massachusetts |
| 3 | Florence E. Shaw | 18 | Daughter | Stenographer | Maine |
| 4 | Cecil F. Shaw | 16 | Son | — | Maine |
| 5 | Rita L. Shaw | 12 | Daughter | — | Maine |
| 6 | Robert E. Shaw | 3 | Son | — | Maine |
| 7 | Nancy Mabbee | 58 | Head | Stitcher | Maine |
| 8 | Guy Mabbee | 52 | Brother | — | Massachusetts |
| 9 | William Mabbee | 14 | Son | — | Maine |
| 10 | Lizzie Heeney | 59 | Sister | — | Massachusetts |
| 11 | Edward Eichholtz | 37 | Head | Truck Driver | New York |
| 12 | Ellen Eichholtz | 35 | Wife | — | Maine |
| 13 | Patricia Curran | 16 | Daughter | — | Canada English |
| 14 | Agnes Curran | 14 | Daughter | — | Canada English |
| 15 | Richard Curran | 12 | Son | — | Canada English |
| 16 | Norman Curran | 10 | Son | — | Canada English |
| 17 | William Mccullum | 41 | Head | Clerical | Maine |
| 18 | Mary Mccullum | 39 | Wife | — | Maine |
| 19 | Lorraine Mccullum | 17 | Daughter | — | Maine |
| 20 | June Mccullum | 14 | Daughter | — | Maine |
| 21 | William Jr. Mccullum | 13 | Son | — | Maine |
| 22 | James Mccullum | 12 | Son | — | Maine |
| 23 | Jean Mccullum | 8 | Daughter | — | Maine |
| 24 | Ronald Mccullum | 7 | Son | — | Maine |
| 25 | Janet Mccullum | 4 | Daughter | — | Maine |
| 26 | Guy A. Young | 53 | Head | Fireman | Maine |
| 27 | Alice Young | 52 | Wife | — | Maine |
| 28 | Priscilla Hatch | 13 | Daughter | — | Maine |
| 29 | Harvey Stearns | 59 | Lodger | Machinist | Maine |
| 30 | Rosa Stearns | 74 | Mother | — | Maine |
| 31 | Patrick Walsh | 48 | Head | Yard Clerk | Irish Free State |
| 32 | Mary Walsh | 46 | Wife | — | Irish Free State |
| 33 | Mary Walsh THIS PERSON | 22 | Daughter | Trained Nurse | Maine |
| 34 | Margaret Walsh | 24 | Daughter | — | Maine |
| 35 | John Walsh | 14 | Son | — | Maine |
| 36 | Joseph Walsh | 13 | Son | — | Maine |
| 37 | Barbara Walsh | 11 | Daughter | — | Maine |
| 38 | Patricia Walsh | 9 | Daughter | — | Maine |
| 39 | Edward Walsh | 8 | Son | — | Maine |
| 40 | Matilda Kennington | 86 | Head | — | Maine |
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)