MQ
Mary Quinn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Quinn across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1901), then head of a 10-person household.
Age 39
b. ~1901
Female
Spouse
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Quinn |
| Given Name | Mary C. D. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Township / Ward | Boston |
| Est. Birth Year | ~1901 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Evelyn Quinn | Daughter | — | 16 | ~1924 |
| Doris Quinn | Daughter | — | 11 | ~1929 |
| John Quinn | Head | — | 54 | ~1886 |
| Ronald Quinn | Son | — | 12 | ~1928 |
| George Quinn | Son | — | 18 | ~1922 |
| Francis Quinn | Son | — | 14 | ~1926 |
| William Quinn | Son | — | 2 | ~1938 |
| Robert Quinn | Son | — | 5 | ~1935 |
| John Quinn | Son | — | 24 | ~1916 |
| Mary Quinn | Spouse | — | 39 | ~1901 |
Census Appearances
1930
Suffolk, Massachusetts
Spouse, age 29
Suffolk, Massachusetts · implied b. ~1901 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Quinn |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1920 |
| Age at First Marriage | 14 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Suffolk-County, Massachusetts
Spouse, age 39
Suffolk-County, Massachusetts · implied b. ~1901 — 10 household members
| Surname | Quinn |
| Given Name | Mary C. D. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Highest Grade | No 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 Quinn across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Quinn
Spouse · 1940 · age 39 · b. ~1901 · 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
39 people indexed on this census page (nara:1940:m-t0627-01675-00273)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William C. Armstrong | 38 | Head | Carpenter | Massachusetts |
| 42 | Margaret Armstrong | 36 | Wife | 0 | Scotland |
| 43 | Shirley Armstrong | 13 | Daughter | — | Massachusetts |
| 44 | David Armstrong | 12 | Son | — | Massachusetts |
| 45 | William C. Armstrong | 7 | Son | — | Massachusetts |
| 46 | Marlene Armstrong | 4 | Daughter | — | Massachusetts |
| 47 | Michael J. Duffy | 68 | Head | Boilermaker | Eire |
| 48 | Catherine D. Duffy | 64 | Wife | — | Eire |
| 49 | George F. Duffy | 28 | Son | Electric Welder | Massachusetts |
| 50 | Ernest K. Tracy | 57 | Head | Machinist | Scotland |
| 51 | Annie D. Tracy | 55 | Wife | — | Scotland |
| 52 | Joseph Holbrook | 42 | Head | Superintendent | Massachusetts |
| 53 | Elizabeth D. Holbrook | 41 | Wife | — | England |
| 54 | Ellen A. Holbrook | 20 | Daughter | Stenographer | Massachusetts |
| 55 | Joseph C. Holbrook | 17 | Son | — | Massachusetts |
| 56 | Arthur S. Holmquist | 36 | Head | Baker | Massachusetts |
| 57 | Rose Holmquist | 33 | Wife | — | Massachusetts |
| 58 | James A. Gibbons | 34 | Head | Broker Insurance | Massachusetts |
| 59 | Alice F. D. Gibbons | 34 | Wife | — | Massachusetts |
| 60 | Mary Jane Gibbons | 2 | Daughter | — | Massachusetts |
| 61 | Tilly D. Duncan | 70 | Head | — | England |
| 62 | John J. Quinn | 54 | Head | Electrician | Massachusetts |
| 63 | Mary C. D. Quinn THIS PERSON | 39 | Wife | — | Scotland |
| 64 | John J. Jr. Quinn | 24 | Son | Laborer | Massachusetts |
| 65 | George H. Quinn | 18 | Son | Laborer | Massachusetts |
| 66 | Evelyn Quinn | 16 | Daughter | New Worker | Massachusetts |
| 67 | Francis X. Quinn | 14 | Son | — | Massachusetts |
| 68 | Ronald Quinn | 12 | Son | — | Massachusetts |
| 69 | Doris Quinn | 11 | Daughter | — | Massachusetts |
| 70 | Robert E. Quinn | 5 | Son | — | Massachusetts |
| 71 | William Quinn | 2 | Son | — | Massachusetts |
| 72 | Hilda D. Adele | 58 | Head | — | Sweden |
| 73 | Eric H. Adele | 28 | Son | Laborer | Massachusetts |
| 74 | Esther D. Hoyt | 19 | Daughter | — | Massachusetts |
| 75 | Lenwood D. Hoyt | 2 | Daughter | — | Massachusetts |
| 76 | Frank Daveau | 46 | Head | Carpenter | Massachusetts |
| 77 | Agatha D. Daveau | 47 | Wife | — | Canada |
| 78 | Beatrice Daveau | 22 | Daughter | Waitress | Massachusetts |
| 79 | Yvonne Daveau | 21 | Daughter | Waitress | 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)