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Joseph Mcdonald — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this Joseph Mcdonald across the 1930 and 1940 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1905), then head of a 8-person household.
Age 25
b. ~1905
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Suffolk, Massachusetts |
| Surname | McDonald |
| Given Name | Joseph A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Canada English |
| Mother's Birthplace | Canada English |
| Additional Details | |
| Occupation | Helper |
| Industry | Steam fitting |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Helper |
| Township / Ward | Boston City Pt |
| Est. Birth Year | ~1905 |
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 1930 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| Joseph Mcdonald | Son | — | 25 | ~1905 |
| Emma Mcdonald | Spouse | — | 52 | ~1878 |
| Margaret Mcdonald | Daughter | — | 16 | ~1914 |
| Isabella Mcdonald | Daughter | — | 26 | ~1904 |
| Robert Mcdonald | Son | — | 13 | ~1917 |
| Alexander Mcdonald | Head | — | 52 | ~1878 |
| John Mcdonald | Son | — | 18 | ~1912 |
| Emma Mcdonald | Daughter | — | 21 | ~1909 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 25
Suffolk, Massachusetts · implied b. ~1905 — 8 household members
| Surname | McDonald |
| Given Name | Joseph A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Canada English |
| Mother's Birthplace | Canada English |
| Occupation | Helper |
| Industry | Steam fitting |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 35
Suffolk-County, Massachusetts · implied b. ~1905 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | MacDonald |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Chelsea City |
| 1935 Residence (County) | Suffolk |
| Occupation | repairman |
| Industry | Camera Shop |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 781 |
| Highest Grade | No 6 |
| 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 Joseph Mcdonald across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Joseph Mcdonald
Son · 1930 · age 25 · b. ~1905 · Massachusetts
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Sibling
Emma Mcdonald
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mcdonald
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Isabella Mcdonald
Sibling · 1930 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Mcdonald
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Mcdonald
Sibling · 1930 · age 16
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
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:massachusettscensus00reel941:0805)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Joanna M Doyle | 42 | Daughter | School Teacher | Massachusetts |
| 52 | Gertrude L Doyle | 40 | Daughter | Book Keeper | Massachusetts |
| 53 | Joseph F Doyle | 35 | Son | Builder | Massachusetts |
| 54 | Mary A Sheridan | 39 | Head | — | Massachusetts |
| 55 | Mary Doherty | 80 | Head | — | Irish Free State |
| 56 | Margaret Doherty | 45 | Daughter | Saleslady | Massachusetts |
| 57 | Charles Krumbeck | 35 | Head | Erecting Engineer | Canada English |
| 58 | Emma L Krumbeck | 38 | Wife | — | New Jersey |
| 59 | Mildred V Krumbeck | 18 | Daughter | — | Massachusetts |
| 60 | Irene A Krumbeck | 16 | Daughter | Cutting Machine | Massachusetts |
| 61 | Charles F Krumbeck | 14 | Son | — | Massachusetts |
| 62 | Joseph S Doucette | 20 | Son-in-law | Grinder | Massachusetts |
| 63 | Arthur G Doucette | 1 | Son | — | Massachusetts |
| 64 | Harry Mcmaster | 41 | Head | Painter | Massachusetts |
| 65 | Edith Mcmaster | 38 | Wife | — | Massachusetts |
| 66 | Margaret Mcmaster | 15 | Daughter | — | Massachusetts |
| 67 | Elizabeth Mcmaster | 14 | Daughter | — | Massachusetts |
| 68 | Cyril Mcmaster | 13 | Son | — | Massachusetts |
| 69 | Charles Mcmaster | 11 | Son | — | Massachusetts |
| 70 | Loretta B Lafferty | 37 | Head | — | Massachusetts |
| 71 | Doris G Lafferty | 13 | Daughter | Telephone Op. | Massachusetts |
| 72 | Agusta Scotti | 36 | Head | Manager | Italy |
| 73 | Angelina Scotti | 26 | Wife | — | Italy |
| 74 | Eugene Scotti | 5 | Son | — | Massachusetts |
| 75 | Anna J Scotti | 2 | Daughter | — | Massachusetts |
| 76 | Michael Rago | 40 | Head | Shoe Maker | Italy |
| 77 | Rose Rago | 37 | Wife | — | Italy |
| 78 | Annie Rago | 15 | Daughter | — | Massachusetts |
| 79 | Patrick Rago | 12 | Son | — | Massachusetts |
| 80 | Lucia Rago | 10 | Daughter | — | Massachusetts |
| 81 | Otto Rago | 7 | Son | — | Massachusetts |
| 82 | Palma Rago | 5 | Daughter | — | Massachusetts |
| 83 | William J Chase | 54 | Head | Cook | Massachusetts |
| 84 | Helen E Chase | 50 | Wife | — | Massachusetts |
| 85 | William E Chase | 27 | Son | Autoguer | Massachusetts |
| 86 | Mary E Chase | 24 | Daughter | Cashier | Massachusetts |
| 87 | Helen E Chase | 20 | Daughter | Cashier | Massachusetts |
| 88 | Patrick J Braney | 59 | Brother-in-law | Chauffeur | Massachusetts |
| 89 | Alexander Mcdonald | 52 | Head | Steam Fitter | Canada English |
| 90 | Emma Mcdonald | 52 | Wife | — | Canada English |
| 91 | Isabella M Mcdonald | 26 | Daughter | Telephone Op. | Massachusetts |
| 92 | Joseph A Mcdonald THIS PERSON | 25 | Son | Helper | Massachusetts |
| 93 | Emma E Mcdonald | 21 | Daughter | Typist | Massachusetts |
| 94 | John B Mcdonald | 18 | Son | Shipper | Massachusetts |
| 95 | Margaret A Mcdonald | 16 | Daughter | — | Massachusetts |
| 96 | Robert E Mcdonald | 13 | Son | — | Massachusetts |
| 97 | William English | 52 | Head | Tank Gauger | England |
| 98 | Hannah English | 53 | Wife | Mason Helper | Canada English |
| 99 | Ronald F English | 21 | Son | Errand Boy | Canada English |
| 100 | Evelyn D English | 15 | Daughter | — | 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)