JM
James Macdonald — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this James Macdonald across the 1930 and 1940 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 6-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 | James 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 | |
| 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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Bernard Macdonald | Son | — | 9 | ~1921 |
| Mary Macdonald | Daughter | — | 5 | ~1925 |
| Elizabeth Macdonald | Spouse | — | 35 | ~1895 |
| Gregory Macdonald | Head | — | 42 | ~1888 |
| Margaret Macdonald | Daughter | — | 3 | ~1927 |
| James Macdonald | Son | — | 7 | ~1923 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 7
Suffolk, Massachusetts · implied b. ~1923 — 6 household members
| Surname | MacDonald |
| Given Name | James 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 |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 18
Suffolk-County, Massachusetts · implied b. ~1922 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonald |
| Given Name | James H. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | City of Boston |
| 1935 Residence (County) | Suffolk |
| Occupation | Errand boy |
| Industry | Grocery store |
| Class of Worker | PW |
| Hours Worked | 23 |
| Income (1939) | 224 |
| Highest Grade | Hs 3 |
| 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 James Macdonald across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Macdonald
Son · 1930 · age 7 · b. ~1923 · Massachusetts
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Sibling
Bernard Macdonald
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Macdonald
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Macdonald
Sibling · 1930 · age 5
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
31 people indexed on this census page (ia:1930:massachusettscensus00reel947:0915)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | William Sullivan | 5 | son | — | Massachusetts |
| 52 | James D Sullivan | 9 | son | — | Massachusetts |
| 53 | Daniel Leary | 33 | Head | Houseman | Connecticut |
| 54 | Florence Leary | 35 | wife | — | Scotland |
| 55 | Mary Leary | 16 | daughter | Stenographer | Massachusetts |
| 56 | Florence Leary | 10 | daughter | — | Massachusetts |
| 57 | Daniel J. Leary | 1 | son | — | Massachusetts |
| 58 | Gregory Macdonald | 42 | Head | Janitor | Canada-English |
| 59 | Elizabeth Macdonald | 35 | wife | — | Canada-English |
| 60 | Bernard J Macdonald | 9 | son | — | Massachusetts |
| 61 | James J Macdonald THIS PERSON | 7 | son | — | Massachusetts |
| 62 | Mary G Macdonald | 5 | daughter | — | Massachusetts |
| 63 | Margaret A Macdonald | 3 | daughter | — | Massachusetts |
| 64 | Cora Thomas | 42 | Head | Maid | Virginia |
| 65 | Hannah Driscoll | 60 | Head | — | Irish Free State |
| 66 | Daniel Driscoll | 20 | son | Elevator Oper. | Massachusetts |
| 67 | Michael Crane | 32 | Head | Waiter | Irish Free State |
| 68 | Mary H Crane | 29 | wife | — | Irish Free State |
| 69 | Richard Horne | 40 | Head | Molder | Irish Free State |
| 70 | Margaret Horne | 42 | wife | — | Irish Free State |
| 71 | Margaret Horne | 10 | daughter | — | Irish Free State |
| 72 | Richard Horne | 8 | son | — | Irish Free State |
| 73 | Edward Horne | 6 | son | — | Irish Free State |
| 74 | Joseph Horne | 2 | son | — | Irish Free State |
| 75 | Bartholomew Gorman | 35 | Head | Baker | Massachusetts |
| 76 | Francis E Gorman | 37 | wife | — | Massachusetts |
| 77 | Mary Gorman | 7 | daughter | — | Massachusetts |
| 78 | Edward J Boland | 58 | Head | Guard | Massachusetts |
| 79 | Bridget T Boland | 55 | wife | — | Irish Free State |
| 80 | William Ominess | 35 | Head | Laborer | Irish Free State |
| 81 | Ellen Ominess | 35 | wife | Laundress | 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)