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Mary Barr — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this Mary Barr across the 1930 and 1940 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1896), then head of a 7-person household.
Age 34
b. ~1896
Female
Spouse
Born: Massachusetts
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Suffolk, Massachusetts |
| Surname | Barr |
| Given Name | Mary L |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 18 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1896 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Barr | Daughter | — | 8 | ~1922 |
| Mary Barr | Spouse | — | 34 | ~1896 |
| Margaret Barr | Daughter | — | 11 | ~1919 |
| Arthur Barr | Son | — | 15 | ~1915 |
| Robert Barr | Son | — | 6 | ~1924 |
| James Barr | Son | — | 13 | ~1917 |
| James Barr | Head | — | 39 | ~1891 |
Census Appearances
1930
Suffolk, Massachusetts
Spouse, age 34
Suffolk, Massachusetts · implied b. ~1896 — 7 household members
| Surname | Barr |
| Given Name | Mary L |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 18 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Spouse, age 44
Suffolk-County, Massachusetts · implied b. ~1896 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bauer |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Income (1939) | 0 |
| Highest Grade | 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 Mary Barr across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Barr
Spouse · 1930 · age 34 · b. ~1896 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Suffolk, Massachusetts
Open full size
1930 US Federal Census — Suffolk, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel946:0681)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | James E Mcnally | 31 | Son | Receiver | Massachusetts |
| 52 | Francis J Mcnally | 22 | Son | Elevator Op. | Massachusetts |
| 53 | George V Flemming | 60 | Head | Carpenter | Canada-English |
| 54 | Margaret E Flemming | 52 | Wife | None | Massachusetts |
| 55 | James A Flemming | 23 | Son | None | Massachusetts |
| 56 | Harold B Flemming | 19 | Son | Mechanic | Massachusetts |
| 57 | Walter P Flemming | 16 | Son | Sorter | Massachusetts |
| 58 | Matthew Petrulis | 35 | Head | Machinist | Lithuania |
| 59 | Mary Petrulis | 26 | Wife | None | Massachusetts |
| 60 | Matthew P Petrulis | 4 | Son | None | Massachusetts |
| 61 | Evelyn M Petrulis | 2 | Daughter | None | Massachusetts |
| 62 | Ruth M Petrulis | 2 | Daughter | None | Massachusetts |
| 63 | James O Barr | 39 | Head | Chauffeur | Canada-English |
| 64 | Mary L Barr THIS PERSON | 34 | Wife | None | Massachusetts |
| 65 | Arthur A Barr | 15 | Son | None | Massachusetts |
| 66 | James J Barr | 13 | Son | None | Massachusetts |
| 67 | Margaret M Barr | 11 | Daughter | None | Massachusetts |
| 68 | Dorothy G Barr | 8 | Daughter | None | Massachusetts |
| 69 | Robert S Barr | 6 | Son | None | Massachusetts |
| 70 | Frank Starinsky | 60 | Head | Laborer | Lithuania |
| 71 | Catherine Starinsky | 60 | Wife | None | Lithuania |
| 72 | Peter Starinsky | 19 | Son | Errand Boy | Massachusetts |
| 73 | Lydia A Anderson | 71 | Head | None | Maine |
| 74 | Nathan H Anderson | 53 | Son | Steam Fitter | Massachusetts |
| 75 | Benjamin F Anderson | 49 | Son | Painter | Massachusetts |
| 76 | John Jos. Anderson | 44 | Son | Foreman | Massachusetts |
| 77 | Annie Flynn | 64 | Head | Maid | Massachusetts |
| 78 | George J Flynn | 33 | Son | Taxi Chauf | Massachusetts |
| 79 | Joseph Mackinskas | 50 | Head | Laborer | Lithuania |
| 80 | Alvin Mackinskas | 19 | Nephew | None | Massachusetts |
| 81 | Joseph A Dusseau | 32 | Head | Mechanic | Massachusetts |
| 82 | Mary E Dusseau | 34 | Wife | None | England |
| 83 | Francis Dusseau | 4 | Son | None | Massachusetts |
| 84 | Margaret Dusseau | 2 | Daughter | None | Massachusetts |
| 85 | Matilda Dusseau | 1 | Daughter | None | Massachusetts |
| 86 | Michael Mckeon | 54 | Head | Laborer | Irish Free State |
| 87 | Sarah Mckeon | 52 | Wife | None | Irish Free State |
| 88 | Frederick Mckeon | 25 | Son | Machinist | Massachusetts |
| 89 | Alice Mckeon | 21 | Daughter | Craftswoman | Massachusetts |
| 90 | Margaret Mckeon | 18 | Daughter | None | Massachusetts |
| 91 | Gertrude Mckeon | 17 | Daughter | None | Massachusetts |
| 92 | Mildred Mckeon | 15 | Daughter | None | Massachusetts |
| 93 | Patricia Mckeon | 7 | Daughter | None | Massachusetts |
| 94 | George L Quireyne | 31 | Head | Spec. Police | Massachusetts |
| 95 | Agnes F Quireyne | 30 | Wife | None | Massachusetts |
| 96 | Peter Quireyne | 68 | Father | None | Belgium |
| 97 | Loraine M Quireyne | 10 | Daughter | None | Massachusetts |
| 98 | George P Quireyne | 5 | Son | None | Massachusetts |
| 99 | Arthur G Cassio | 37 | Head | Fireman | Massachusetts |
| 100 | Mary A Cassio | 36 | Wife | None | Massachusetts |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)