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James Macdonald — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Alameda, California
Our Model Tree links this James Macdonald across the 1930 and 1940 US Censuses in Alameda, California (XGBoost, ~Confirmed) — first a son (b.~1918), then head of a 7-person household.
Age 12
b. ~1918
Male
Son
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Alameda, California |
| Surname | MacDonald |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Oakland City |
| Est. Birth Year | ~1918 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Lila Macdonald | Daughter | — | 10 | ~1920 |
| James Macdonald | Son | — | 12 | ~1918 |
| George Macdonald | Son | — | 16 | ~1914 |
| Arthur Macdonald | Son | — | 14 | ~1916 |
| Nellie Macdonald | Spouse | — | 40 | ~1890 |
| Malcolm Macdonald | Head | — | 53 | ~1877 |
| Lila Macdonald | Daughter | — | 10 | ~1920 |
Census Appearances
1930
Alameda, California
Son, age 12
Alameda, California · implied b. ~1918 — 7 household members
| Surname | MacDonald |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Alameda-County, California
Other, age 23
Alameda-County, California · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonald |
| Given Name | James |
| Relationship to Head | Lodger |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Oakland |
| 1935 Residence (County) | Alameda |
| Occupation | Painter |
| Industry | Building Construction |
| Class of Worker | PW |
| Hours Worked | 3 |
| Income (1939) | 300 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 12 · b. ~1918 · California
★ You are viewing this record
Sibling
Lila Macdonald
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lila Macdonald
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Macdonald
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Macdonald
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 — Alameda, California
Open full size
1930 US Federal Census — Alameda, California
Page Contents
50 people indexed on this census page (ia:1930:15thcensuspopula107unit:0426)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ruth S Miller | 38 | Wife | — | California |
| 2 | Robt S Miller | 4 | Son | — | California |
| 3 | Kenneth Miller | 1 | Son | — | California |
| 4 | Jas C Hannum | 70 | Head | Store Keeper | Ohio |
| 5 | Mattie M Hannum | 63 | Wife | — | California |
| 6 | Oscar Feinsted | 51 | Head | Machinist | Sweden |
| 7 | Alfa Feinsted | 49 | Wife | — | Norway |
| 8 | Norman Feinsted | 21 | Son | Truck Driver | California |
| 9 | Lucille Feinsted | 18 | Daughter | — | California |
| 10 | Helen Feinsted | 12 | Daughter | — | California |
| 11 | Alice Feinsted | 10 | Daughter | — | California |
| 12 | John P Buckley | 55 | Head | — | Wisconsin |
| 13 | Robt R Bruce | 48 | Head | Tinner | California |
| 14 | Eva Bruce | 47 | Wife | — | California |
| 15 | Jack L Bruce | 20 | Son | Clerk | California |
| 16 | Albert R Bruce | 17 | Son | — | California |
| 17 | Malcolm Macdonald | 53 | Head | Carpenter | England |
| 18 | Nellie E Macdonald | 40 | Wife | — | English |
| 19 | George H Macdonald | 16 | Son | Messenger | California |
| 20 | Arthur J Macdonald | 14 | Son | Wood Chopper | California |
| 21 | James Macdonald THIS PERSON | 12 | Son | — | California |
| 22 | Lila Macdonald | 10 | Daughter | — | California |
| 23 | Lila Macdonald | 10 | Daughter | — | California |
| 24 | Elizabeth Starkey | 39 | Head | Dressmaker | Kansas |
| 25 | Thea A Ackermann | 30 | Head | Stenographer | Iowa |
| 26 | Thea A Ackermann | 30 | Head | Stenographer | Iowa |
| 27 | Thea A Ackermann | 30 | Head | Stenographer | Iowa |
| 28 | Ernest F Reisner | 42 | Head | Waiter | United States |
| 29 | Fellow Miller | 34 | Head | Warehouseman | California |
| 30 | Velma Miller | 23 | Wife | — | Wyoming |
| 31 | Ardis Anderson | 11 | Boarder | — | California |
| 32 | Sam D Anderson | 7 | Son | — | California |
| 33 | Michael Joyce | 47 | Head | Foreman | Free State |
| 34 | Mary G Joyce | 36 | Wife | — | Free State |
| 35 | Winnie Mccatton | 35 | Sister in law | Hairdresser | Free State |
| 36 | Marie Joyce | 15 | Daughter | — | California |
| 37 | Henry L Leornier | 47 | Head | Store Man | Minnesota |
| 38 | Alice Leornier | 47 | Wife | — | Wisconsin |
| 39 | Joseph Leornier | 16 | Son | — | Minnesota |
| 40 | James Leornier | 14 | Son | — | Minnesota |
| 41 | Edmond M Follis | 42 | Head | Laborer | Iowa |
| 42 | Zelma Follis | 39 | Wife | — | Iowa |
| 43 | Melvin Follis | 17 | Son | — | Iowa |
| 44 | Gladys Follis | 16 | Daughter | — | California |
| 45 | Paul Follis | 10 | Son | — | California |
| 46 | Leroy Follis | 4 | Son | — | California |
| 47 | Charles W Farquhar | 38 | Head | Mail Carrier | Pennsylvania |
| 48 | Mrs Mattie Farquhar | 67 | Mother | — | Kansas |
| 49 | Vernon Farquhar | 9 | Son | — | California |
| 50 | Mary Cormier | 3 | Daughter | — | California |
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)