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John Macdonald — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this John Macdonald across the 1930 and 1940 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 8-person household.
Age 7
b. ~1923
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Suffolk, Massachusetts |
| Surname | MacDonald |
| Given Name | John J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Canada English |
| Mother's Birthplace | Canada English |
| Additional Details | |
| Occupation | Yes |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1923 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Mary Macdonald | Spouse | — | 41 | ~1889 |
| Joseph Macdonald | Head | — | 42 | ~1888 |
| George Macdonald | Son | — | 6 | ~1924 |
| William Macdonald | Son | — | 3 | ~1927 |
| James Macdonald | Son | — | 9 | ~1921 |
| John Macdonald | Son | — | 7 | ~1923 |
| Joseph Macdonald | Son | — | 3 | ~1927 |
| Genevieve Macdonald | Daughter | — | 5 | ~1925 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 7
Suffolk, Massachusetts · implied b. ~1923 — 8 household members
| Surname | MacDonald |
| Given Name | John J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Canada English |
| Mother's Birthplace | Canada English |
| Occupation | Yes |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 17
Suffolk-County, Massachusetts · implied b. ~1923 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonald |
| Given Name | John J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Winthrop Town |
| 1935 Residence (County) | Suffolk |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| 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 John Macdonald across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Macdonald
Son · 1930 · age 7 · b. ~1923 · Massachusetts
★ You are viewing this record
Sibling
Genevieve Macdonald
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Macdonald
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Macdonald
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Macdonald
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Macdonald
Sibling · 1930 · age 3
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
42 people indexed on this census page (ia:1930:massachusettscensus00reel946:0873)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Margaret Mealey | 5 | Daughter | — | Massachusetts |
| 52 | Ernest J Mealey | 1 | Son | — | Massachusetts |
| 53 | William Burgin | 25 | Head | Yes | Massachusetts |
| 54 | Mary M Burgin | 23 | Wife | Yes | Massachusetts |
| 55 | William J Burgin | 1 | Son | — | Massachusetts |
| 56 | Joseph Macdonald | 42 | Head | Brakeman | Canada English |
| 57 | Mary Macdonald | 41 | Wife | — | Canada English |
| 58 | James S Macdonald | 9 | Son | — | Canada English |
| 59 | John J Macdonald THIS PERSON | 7 | Son | Yes | Massachusetts |
| 60 | George E Macdonald | 6 | Son | Yes | Massachusetts |
| 61 | Genevieve Macdonald | 5 | Daughter | Yes | Massachusetts |
| 62 | William Macdonald | 3 | Son | Yes | Massachusetts |
| 63 | Joseph Macdonald | 3 | Son | Yes | Massachusetts |
| 64 | Henry Mahauguin | 66 | Head | Stationary Fireman | Irish Free State |
| 65 | Margaret Mahauguin | 62 | Wife | — | Irish Free State |
| 66 | John Mahauguin | 60 | Brother | Stationary Fireman | Irish Free State |
| 67 | John Mahoney | 46 | Brother-in-law | Freight Handler | Irish Free State |
| 68 | Charles J Mahauguin | 33 | Head | Laborer | Irish Free State |
| 69 | Margaret Mahauguin | 33 | Wife | — | Irish Free State |
| 70 | Charles J Mahauguin | 4 | Son | — | Massachusetts |
| 71 | Bernard A Mahauguin | 2 | Son | — | Massachusetts |
| 72 | Gerald T Mahauguin | 0 | Son | — | Massachusetts |
| 73 | James R O'Brien | 22 | Head | Yes | Massachusetts |
| 74 | Mary M O'Brien | 24 | Wife | Yes | Massachusetts |
| 75 | Charles J O'Brien | 3 | Son | — | Massachusetts |
| 76 | John Hayes | 59 | Boarder | Stone Cutter | Irish Free State |
| 77 | Frank L Butterfield | 64 | Head | Yes | Massachusetts |
| 78 | Catherine T Butterfield | 64 | Wife | — | Irish Free State |
| 79 | John Flaherty | 37 | Head | Laborer | Irish Free State |
| 80 | Barbara Flaherty | 31 | Wife | — | Irish Free State |
| 81 | John Flaherty | 10 | Son | Yes | Massachusetts |
| 82 | Peter Flaherty | 7 | Son | Yes | Massachusetts |
| 83 | Theresa Flaherty | 4 | Daughter | — | Massachusetts |
| 84 | Mary Flaherty | 1 | Daughter | — | Massachusetts |
| 85 | Mary Monahan | 47 | Head | Cleaner | Irish Free State |
| 86 | Catherine E Monahan | 21 | Daughter | Yes | Massachusetts |
| 87 | Margaret M Monahan | 19 | Daughter | Yes | Massachusetts |
| 88 | Alice Monahan | 14 | Daughter | Yes | Massachusetts |
| 89 | Nellie O'Connell | 47 | Head | — | Irish Free State |
| 90 | William Glynn | 21 | Nephew | Yes | Massachusetts |
| 91 | Michael Grace | 60 | Head | Freight Clerk | Irish Free State |
| 92 | Mary A Grace | 47 | Wife | — | Irish Free State |
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)