MN
Mary Nolan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Nolan across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1880), then head of a 5-person household.
Age 60
b. ~1880
Female
Spouse
Born: Irish Free State
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Nolan |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birthplace (normalized) | irish free state |
| Township / Ward | Boston |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Patrick Nolan | Head | — | 71 | ~1869 |
| Delia Donlon | Other | — | 55 | ~1885 |
| Mary Hall | Other | — | 89 | ~1851 |
| Thomas Nolan | Son | — | 17 | ~1923 |
| Mary Nolan | Spouse | — | 60 | ~1880 |
Census Appearances
1920
Essex, New …
Spouse, age 40
Essex, New Jersey · implied b. ~1880 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nolan |
| Given Name | Mary A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| Year of Immigration | 1902 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birthplace (normalized) | irish free state |
1930
Suffolk, Massachusetts
Spouse, age 51
Suffolk, Massachusetts · implied b. ~1879 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nolan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| Naturalization Status | Naturalized |
| Year of Immigration | 1903 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birthplace (normalized) | irish free state |
1940
Suffolk-County, Massachusetts
Spouse, age 60
Suffolk-County, Massachusetts · implied b. ~1880 — 5 household members
| Surname | Nolan |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birthplace (normalized) | irish free state |
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 Nolan 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 Nolan
Spouse · 1940 · age 60 · b. ~1880 · 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-t0627-01679-00372)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Marion L. Pflug | 44 | Wife | — | Massachusetts |
| 42 | Dorothy M. Pflug | 16 | Daughter | — | Massachusetts |
| 43 | Marjorie R. Pflug | 13 | Daughter | — | Massachusetts |
| 44 | Margaret V. Garrity | 71 | Head | — | Massachusetts |
| 45 | Katherine L. Garrity | 67 | Sister | Teacher | Massachusetts |
| 46 | William C. Stinson | 58 | Head | Proprietor | Massachusetts |
| 47 | Augusta W. Stinson | 56 | Wife | — | Massachusetts |
| 48 | Robert Ellis | 56 | Head | Salesman | Rhode Island |
| 49 | Annie J. Ellis | 55 | Wife | Switchboard Operator | Massachusetts |
| 50 | Emilia C. Lucy | 88 | Mother-in-law | — | Sweden |
| 51 | George W. Lucy | 58 | Brother-in-law | Machine Operator | Massachusetts |
| 52 | Evangeline H. Lucy | 50 | Sister-in-law | Switchboard Operator | Massachusetts |
| 53 | George J. Willis | 26 | Lodger | Machinist | Maine |
| 54 | Patrick J. Nolan | 71 | Head | — | Massachusetts |
| 55 | Mary E. Nolan THIS PERSON | 60 | Wife | — | Irish Free State |
| 56 | Thomas J. Nolan | 17 | Son | — | Massachusetts |
| 57 | Delia Donlon | 55 | Sister-in-law | Saleswoman | Irish Free State |
| 58 | Mary Hall | 89 | Lodger | — | Massachusetts |
| 59 | Joseph F. Quilty | 58 | Head | Stationary Engineer | Massachusetts |
| 60 | Mary C. Quilty | 55 | Wife | — | Massachusetts |
| 61 | Mary L. Quilty | 31 | Daughter | Teacher | Massachusetts |
| 62 | Virginia G. Quilty | 24 | Daughter | Telephone Operator | Massachusetts |
| 63 | Joseph F. Jr. Quilty | 22 | Son | New Worker | Massachusetts |
| 64 | Arthur M. Quilty | 15 | Son | — | Massachusetts |
| 65 | Katherine A. Mcvey | 54 | Sister-in-law | Supervisor | Massachusetts |
| 66 | Ida L. Carter | 60 | Head | Nurse | Canada-English |
| 67 | Florence L. Carter | 50 | Sister | — | Canada-English |
| 68 | Walter R. Hickey | 63 | Head | Salesman | Canada-English |
| 69 | Helen L. Hickey | 54 | Wife | — | Massachusetts |
| 70 | Philip T. Hickey | 33 | Son | Bookkeeper | Massachusetts |
| 71 | Guilford W. Waters | 70 | Head | Maintenance Man | Canada-English |
| 72 | Helen B. Waters | 64 | Wife | — | Northern Ireland |
| 73 | Sophie R. Trunn | 38 | Lodger | Private Secretary | Connecticut |
| 74 | James E. Karins | 56 | Head | Inspector | Massachusetts |
| 75 | Helen A. Karins | 47 | Wife | — | Massachusetts |
| 76 | Virginia B. Harford | 31 | Lodger | Publicity Agent | Ohio |
| 77 | Ellen Brennan | 60 | Head | — | Massachusetts |
| 78 | Michael J. Brennan | 59 | Brother | Mailer | Massachusetts |
| 79 | Margaret M. Brennan | 54 | Sister | Teacher | Massachusetts |
| 80 | Elizabeth F. Brennan | 46 | Sister | — | 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)