MN
Margaret Nolan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Margaret Nolan across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 8-person household.
Age 19
b. ~1921
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Nolan |
| Given Name | Margaret T. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Attendant |
| Industry | City Hospital |
| Class of Worker | GW |
| Hours Worked | 2 |
| Income (1939) | 92 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Attendant |
| Township / Ward | Boston City |
| Est. Birth Year | ~1921 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| William Nolan | Son | — | 2 | ~1938 |
| Alice Nolan | Daughter | — | 15 | ~1925 |
| Joseph Nolan | Son | — | 17 | ~1923 |
| Alice Nolan | Spouse | — | 40 | ~1900 |
| Isabel Nolan | Daughter | — | 18 | ~1922 |
| Margaret Nolan | Daughter | — | 19 | ~1921 |
| Joseph Nolan | Head | — | 44 | ~1896 |
| Dorothy Nolan | Daughter | — | 10 | ~1930 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age 9
Suffolk, Massachusetts · implied b. ~1921 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nolan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 19
Suffolk-County, Massachusetts · implied b. ~1921 — 8 household members
| Surname | Nolan |
| Given Name | Margaret T. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Occupation | Attendant |
| Industry | City Hospital |
| Class of Worker | GW |
| Hours Worked | 2 |
| Income (1939) | 92 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Nolan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Nolan
Daughter · 1940 · age 19 · b. ~1921 · Massachusetts
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Sibling
William Nolan
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Nolan
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Nolan
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Nolan
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Isabel Nolan
Sibling · 1940 · age 18
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 — 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-t0627-01659-00332)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Adolphine Elia | 20 | daughter | Sorter | Massachusetts |
| 42 | Anthony D'Addario | 53 | head | Blacksmith'S Helper | Italy |
| 43 | Elizabeth D'Addario | 43 | wife | — | Italy |
| 44 | Concetta D'Addario | 24 | daughter | Can Wrapper | Massachusetts |
| 45 | Frances D'Addario | 21 | daughter | Clerk | Massachusetts |
| 46 | Willard Mideros | 27 | head | Mixer | Canada-English |
| 47 | Grace Mideros | 27 | wife | Wrapper | Massachusetts |
| 48 | Bill Mideros | 3 | son | — | Massachusetts |
| 49 | Joseph H. Nolan | 44 | head | Chauffeur | Massachusetts |
| 50 | Alice K. Nolan | 40 | wife | — | Massachusetts |
| 51 | Margaret T. Nolan THIS PERSON | 19 | daughter | Attendant | Massachusetts |
| 52 | Isabel R. Nolan | 18 | daughter | Instructor'S Helper | Massachusetts |
| 53 | Joseph H. Jr. Nolan | 17 | son | — | Massachusetts |
| 54 | Alice K. Nolan | 15 | daughter | — | Massachusetts |
| 55 | Dorothy Nolan | 10 | daughter | — | Massachusetts |
| 56 | William Nolan | 2 | son | — | Massachusetts |
| 57 | Nelson Smith | 35 | head | Laborer | Indiana |
| 58 | Eleanor Smith | 28 | wife | — | Massachusetts |
| 59 | Frederick Smith | 10 | son | — | Massachusetts |
| 60 | Paul Smith | 9 | son | — | Massachusetts |
| 61 | Eleanor Smith | 7 | daughter | — | Massachusetts |
| 62 | Warren Smith | 6 | son | — | Massachusetts |
| 63 | Robert Smith | 5 | son | — | Massachusetts |
| 64 | Wayne Smith | 3 | son | — | Massachusetts |
| 65 | Lois Smith | 2 | daughter | — | Massachusetts |
| 66 | William Smith | 1 | son | — | Massachusetts |
| 67 | Albert Lunn | 63 | head | Cook | Massachusetts |
| 68 | William Reynolds | 61 | lodger | Cook | Massachusetts |
| 69 | Harriet Horton | 50 | head | — | Massachusetts |
| 70 | Frank Horton | 58 | husband | Packer | Massachusetts |
| 71 | Barbara Horton | 12 | daughter | — | Massachusetts |
| 72 | Charles Horton | 11 | son | — | Massachusetts |
| 73 | Catherine Maera | 41 | head | — | New Hampshire |
| 74 | James Maera | 17 | son | — | Massachusetts |
| 75 | Patrick Maera | 11 | son | — | Massachusetts |
| 76 | George Fontaine | 40 | head | Retail Salesman | Vermont |
| 77 | Joseph Fontaine | 20 | son | Gas Station Attendant | Massachusetts |
| 78 | Louise Fontaine | 18 | daughter | — | Massachusetts |
| 79 | Jeremiah Ahern | 49 | head | Rigger | Massachusetts |
| 80 | Mary Ahern | 47 | wife | — | 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)