MF
Mary Flynn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Flynn across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1888), then head of a 3-person household.
Age 52
b. ~1888
Female
Head
Born: Sweden
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Flynn |
| Given Name | Mary J |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Widowed |
| Birthplace | Sweden |
| 1935 Residence (City) | Winthrop |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Saleswoman |
| Industry | Clothing Store |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 780 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Occupation | Saleswoman |
| Township / Ward | Winthrop |
| Est. Birth Year | ~1888 |
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 |
|---|---|---|---|---|
| Hilda Flynn | Daughter | — | 25 | ~1915 |
| Mary Flynn | Head | — | 52 | ~1888 |
| Nelson Flynn | Son | — | 21 | ~1919 |
Census Appearances
1920
Norfolk, Massachusetts
Spouse, age 32
Norfolk, Massachusetts · implied b. ~1888 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flynn |
| Given Name | Mary J |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Sweden |
| Year of Immigration | 1905 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Year of Naturalization | 1919 |
| Birthplace (normalized) | sweden |
1930
Suffolk, Massachusetts
Head, age 42
Suffolk, Massachusetts · implied b. ~1888 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flynn |
| Given Name | Mary I. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Widowed |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Year of Immigration | 1905 |
| Age at First Marriage | 22 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Sales Lady |
| Industry | Retail Dry Goods |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | R |
| Home Value / Rent | 28 |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Suffolk-County, Massachusetts
Head, age 52
Suffolk-County, Massachusetts · implied b. ~1888 — 3 household members
| Surname | Flynn |
| Given Name | Mary J |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Widowed |
| Birthplace | Sweden |
| 1935 Residence (City) | Winthrop |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Occupation | Saleswoman |
| Industry | Clothing Store |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 780 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
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 Flynn across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Flynn
Head · 1940 · age 52 · b. ~1888 · Massachusetts
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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 — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01644-00811)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | George Mcdouglas | 43 | Head | Clerk | Massachusetts |
| 42 | Emily Mcdouglas | 45 | Wife | 0 | Massachusetts |
| 43 | George Jr Mcdouglas | 14 | Son | — | Massachusetts |
| 44 | Francis Mcdouglas | 5 | Son | — | Massachusetts |
| 45 | John Hewitt | 85 | Father in Law | — | Massachusetts |
| 46 | Lester H Smith | 29 | Head | Salesman | Massachusetts |
| 47 | Elsie C Smith | 25 | Wife | 0 | Massachusetts |
| 48 | Sally Smith | 3 | Daughter | — | Massachusetts |
| 49 | John W Page | 36 | Head | Salesman | Massachusetts |
| 50 | Nettie Page | 37 | Wife | 0 | New Hampshire |
| 51 | Morton Page | 14 | Son | — | Massachusetts |
| 52 | Katherine Mcclellan | 45 | Head | 0 | Scotland |
| 53 | Warren Mcclellan | 24 | Son | General Work | Massachusetts |
| 54 | Douglas Mcclellan | 22 | Son | Pin Boy | Massachusetts |
| 55 | Edward W Lobster | Sobster | 57 | Lodger | Painter | Massachusetts |
| 56 | Mary J Flynn THIS PERSON | 52 | Head | Saleswoman | Sweden |
| 57 | Nelson Flynn | 21 | Son | Operator Machine | Massachusetts |
| 58 | Hilda Flynn | 25 | Daughter | Representative | Massachusetts |
| 59 | Samuel Tanger | 50 | Head | Salesman | New York |
| 60 | Celia Tanger | 45 | Wife | 0 | Russia |
| 61 | Arthur Tanger | 24 | Son | Salesman | New York |
| 62 | Rita Tanger | 15 | Daughter | Stenographer | New York |
| 63 | Sarah Tanger | 11 | Daughter | — | New York |
| 64 | Margaret E Pickering | 33 | Head | Secretary | Massachusetts |
| 65 | Robert Pearson | 33 | Head | Aircraft Armor | Massachusetts |
| 66 | Mary Pearson | 29 | Wife | 0 | Massachusetts |
| 67 | Mary R Pearson | 5 | Daughter | — | Massachusetts |
| 68 | James Danahy | 36 | Head | Guard | Massachusetts |
| 69 | Mary Danahy | 32 | Wife | 0 | Canada English |
| 70 | Beatrice Danahy | 15 | Daughter | — | Massachusetts |
| 71 | James Jr Danahy | 14 | Son | — | Massachusetts |
| 72 | Thomas Danahy | 13 | Son | — | Massachusetts |
| 73 | George J O'Halloran | 37 | Head | Guard | Massachusetts |
| 74 | Emma F O'Halloran | 32 | Wife | 0 | Massachusetts |
| 75 | Kathryn O'Halloran | 6 | Daughter | — | Massachusetts |
| 76 | William Sapper | 36 | Head | Salesman | Massachusetts |
| 77 | Adelaide Sapper | 29 | Wife | 0 | Massachusetts |
| 78 | William H Sapper | 9 | Son | — | Massachusetts |
| 79 | Sally A Sapper | 3 | Daughter | — | Massachusetts |
| 80 | William G Halland | 24 | Head | Salesman | Massachusetts |
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)