JM
John Macdonald — 1930 US Census Record
Model Tree available1930 United States Federal Census · Norfolk, Massachusetts
Our Model Tree links this John Macdonald across the 1920, 1930 and 1940 US Censuses in Norfolk, Massachusetts (XGBoost, ~Confirmed), with identified parents Bridgette & Alexander — first a son (b.~1900), then head of a 4-person household.
Age 30
b. ~1900
Male
Son
Born: Scotland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Norfolk, Massachusetts |
| Surname | MacDonald |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1911 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Additional Details | |
| Occupation | Merchant |
| Industry | Fruit Store |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Merchant |
| Township / Ward | Walpole Town |
| Est. Birth Year | ~1900 |
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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Macdonald | Spouse | — | 53 | ~1877 |
| John Macdonald | Son | — | 30 | ~1900 |
| Florence Macdonald | Daughter | — | 24 | ~1906 |
| Owen Macdonald | Head | — | 55 | ~1875 |
Census Appearances
1920
Suffolk, Massachusetts
Son, age 20
Suffolk, Massachusetts · implied b. ~1900 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | MacDonald |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Scotland |
| Year of Immigration | 1911 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Janitor |
| Industry | Building |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Scotch |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1930
Norfolk, Massachusetts
Son, age 30
Norfolk, Massachusetts · implied b. ~1900 — 4 household members
| Surname | MacDonald |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1911 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Merchant |
| Industry | Fruit Store |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Middlesex-County, Massachusetts
Son, age 40
Middlesex-County, Massachusetts · implied b. ~1900 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mc Donald |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | Scotland |
| 1935 Residence (City) | Somerville |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Occupation | Salesman |
| Industry | Wholesale Seafoods |
| Class of Worker | PW |
| Hours Worked | 13 |
| Income (1939) | 696 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: mother Bridgette Macdonald (~0.92 confidence) and father Alexander Macdonald (~0.92 confidence) and father Owen Macdonald (~0.92 confidence) and mother Elizabeth Macdonald (~0.92 confidence) and mother Ellen Mc Donald (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Bridgette Macdonald
b. ~1870
Source mother
● Household
· direct · ~0.92
Father
Alexander Macdonald
b. ~1874
Source father
● Household
· direct · ~0.92
Father
Owen Macdonald
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Macdonald
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Ellen Mc Donald
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Macdonald
Son · 1930 · age 30 · b. ~1900 · Massachusetts
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Sibling
Florence Macdonald
Sibling · 1930 · age 24
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 — Norfolk, Massachusetts
Open full size
1930 US Federal Census — Norfolk, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel937:0775)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Sylvester Lorden | 25 | Head | Asst Foreman | Massachusetts |
| 52 | Alice Lorden | 23 | Wife | — | Massachusetts |
| 53 | Joan Lorden | 1 | Daughter | — | Massachusetts |
| 54 | Mary Lorden | 0 | Daughter | — | Massachusetts |
| 55 | Annie Lorden | 52 | Mother | — | Massachusetts |
| 56 | Edward Linnell | 28 | Head | Foreman | Rhode Island |
| 57 | Alice Linnell | 22 | Wife | — | Massachusetts |
| 58 | Edward Linnell | 3 | Son | — | Massachusetts |
| 59 | Richard Linnell | 1 | Son | — | Massachusetts |
| 60 | Charles Hamlin | 32 | Head | Foreman | Maine |
| 61 | Alice Hamlin | 22 | Wife | — | Massachusetts |
| 62 | Dorothy Hamlin | 10 | Daughter | — | Massachusetts |
| 63 | Evelyn Hamlin | 20 | Daughter | Examiner | Massachusetts |
| 64 | Ida Hamlin | 17 | Daughter | Clerical | Massachusetts |
| 65 | Ruth Hamlin | 4 | Daughter | — | Massachusetts |
| 66 | James Hamlin | 1 | Son | — | Massachusetts |
| 67 | Dominic Pellegrino | 45 | Head | Barber | Portugal |
| 68 | Mary Pellegrino | 44 | Wife | — | Massachusetts |
| 69 | Dominic Pellegrino | 13 | Son | — | Massachusetts |
| 70 | Mary Pellegrino | 11 | Daughter | — | Massachusetts |
| 71 | Joseph Caccavale | 34 | Head | Fruitman | Massachusetts |
| 72 | Ida Caccavale | 31 | Wife | — | Massachusetts |
| 73 | Gladys Caccavale | 5 | Daughter | — | Massachusetts |
| 74 | Ida Caccavale | 2 | Daughter | — | Massachusetts |
| 75 | Frederick Pratt | 23 | Boarder | Machine Tender | Massachusetts |
| 76 | John Dunn | 50 | Head | Beltman | Scotland |
| 77 | Theresa Dunn | 44 | Wife | — | Scotland |
| 78 | Margaret Dunn | 16 | Daughter | — | Massachusetts |
| 79 | Agnes Dunn | 10 | Daughter | — | Massachusetts |
| 80 | Malvina Dunn | 15 | Daughter | — | Massachusetts |
| 81 | Alice Dunn | 3 | Daughter | — | Scotland |
| 82 | Charles Colburn | 45 | Head | Agent | Connecticut |
| 83 | Alice Colburn | 32 | Wife | — | New York |
| 84 | Frank Colburn | 20 | Son | Gardner | New York |
| 85 | Barbara Colburn | 16 | Daughter | — | California |
| 86 | Samuel E. Fuller | 43 | Head | Real Estate | Massachusetts |
| 87 | Emma M. Fuller | 24 | Wife | — | Massachusetts |
| 88 | Jean Fuller | 0 | Daughter | — | Massachusetts |
| 89 | Nils E. Lundquist | 33 | Head | Asst Foreman | Rhode Island |
| 90 | Martha Lundquist | 30 | Wife | — | Massachusetts |
| 91 | Janet Lundquist | 7 | Daughter | — | Massachusetts |
| 92 | Nils Lundquist | 5 | Son | — | Massachusetts |
| 93 | Marjorie Lundquist | 2 | Daughter | — | Massachusetts |
| 94 | Owen Macdonald | 55 | Head | Butcher | Scotland |
| 95 | Elizabeth Macdonald | 53 | Wife | — | Scotland |
| 96 | John A. Macdonald THIS PERSON | 30 | Son | Merchant | Scotland |
| 97 | Florence Macdonald | 24 | Daughter | Stenographer | Scotland |
| 98 | Leo Smith | 46 | Head | Asst Foreman | Massachusetts |
| 99 | Alice Smith | 54 | Wife | — | Ireland |
| 100 | William Lundquist | 30 | Head | Finisher | Rhode Island |
Pedigree Summary
John + 1 sibling
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)