MF
Margaret Flynn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Margaret Flynn across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1880), then head of a 3-person household.
Age 60
b. ~1880
Female
Head
Born: Ireland
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Flynn |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Cambridge |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Cambridge |
| 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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Flynn | Head | — | 60 | ~1880 |
| William Flynn | Son | — | 27 | ~1913 |
| Edward Flynn | Son | — | 25 | ~1915 |
Census Appearances
1920
Middlesex, Massachusetts
Other, age 34
Middlesex, Massachusetts · implied b. ~1886 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flynn |
| Given Name | Mary |
| Relationship to Head | roomer |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Ireland |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | operator |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Middlesex, Massachusetts
Other, age 45
Middlesex, Massachusetts · implied b. ~1885 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flynn |
| Given Name | Mary |
| Relationship to Head | Sister |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Single |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1900 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | House maid |
| Industry | Private family |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Irish |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Middlesex-County, Massachusetts
Head, age 60
Middlesex-County, Massachusetts · implied b. ~1880 — 3 household members
| Surname | Flynn |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Cambridge |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Class of Worker | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Margaret Flynn across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Flynn
Head · 1940 · age 60 · b. ~1880 · Massachusetts
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01683-00437)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mariana Oliver | 17 | Daughter | Wrapper | Rhode Island |
| 42 | Anthony Oliver | 14 | Son | — | Rhode Island |
| 43 | Joseph Oliver | 13 | Son | — | Rhode Island |
| 44 | James Loretani | 42 | Head | Baker | Italy |
| 45 | Mildred Loretani | 32 | Wife | — | Massachusetts |
| 46 | Margaret Loretani | 4 | Daughter | — | Massachusetts |
| 47 | Bessie Mcheffrey | 62 | Lodger | Air Cleaner | Maine |
| 48 | Manuel Silva | 59 | Head | Laborer | Portugal |
| 49 | Mary Silva | 50 | Wife | — | Portugal |
| 50 | Frank Silva | 25 | Son | Laborer | Massachusetts |
| 51 | Anthony Silva | 23 | Son | Laborer | Massachusetts |
| 52 | Mary E. Silva | 23 | Daughter | Operator | Massachusetts |
| 53 | Louis Silva | 21 | Son | Cutter | Massachusetts |
| 54 | Emma Silva | 16 | Daughter | New Worker | Massachusetts |
| 55 | James Silva | 13 | Son | — | Massachusetts |
| 56 | Naseen Unieri | 45 | Head | Painter | Syria |
| 57 | Sarah Unieri | 29 | Wife | — | Massachusetts |
| 58 | Mary Arruda | 55 | Lodger | — | Portugal |
| 59 | Marie Panchio | 64 | Head | — | Portugal |
| 60 | Arthur Panchio | 34 | Son | Laborer | Portugal |
| 61 | Wilfred Valliere | 53 | Head | Porter | Canada French |
| 62 | Annie Valliere | 52 | Wife | — | Massachusetts |
| 63 | Emily Pedro | 43 | Head | — | Portugal |
| 64 | Alice Pedro | 18 | Daughter | New Worker | Massachusetts |
| 65 | Alice Pedro | 14 | Daughter | — | Massachusetts |
| 66 | Manuel Pedro | 16 | Son | — | Massachusetts |
| 67 | Mary Tawdem | 76 | Head | — | Massachusetts |
| 68 | Margaret Mcauliffe | 50 | Daughter | — | Massachusetts |
| 69 | Margaret Flynn THIS PERSON | 60 | Head | — | Ireland |
| 70 | William Flynn | 27 | Son | Laborer | Massachusetts |
| 71 | Edward Flynn | 25 | Son | Laborer | Massachusetts |
| 72 | Mary Costa | 48 | Head | — | Portugal |
| 73 | Manuel Roderick | 30 | Head | Cabinet Maker | Portugal |
| 74 | Margaret Roderick | 23 | Wife | — | Massachusetts |
| 75 | Marjorie Roderick | 4 | Daughter | — | Massachusetts |
| 76 | Barbara Roderick | 1 | Daughter | — | Massachusetts |
| 77 | Augusto Pimental | 40 | Head | Polisher | Portugal |
| 78 | Estefanie Pimental | 36 | Wife | Operator | Portugal |
| 79 | Olga Pimental | 13 | Daughter | — | Massachusetts |
| 80 | Manuel Santos | 54 | Head | Laborer | Portugal |
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)