JD
John Donahue — 1930 US Census Record
Linked across censuses1930 United States Federal Census · San Francisco, California
Our Model Tree links this John Donahue across the 1920, 1930 and 1940 US Censuses in San Francisco, California (XGBoost, ~Confirmed) — first a head (b.~1906), then head of a 3-person household.
Age 24
b. ~1906
Male
Head
Born: California
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | San Francisco, California |
| Surname | Donahue |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | California |
| Age at First Marriage | 22 |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Additional Details | |
| Occupation | Truck Driver |
| Industry | Oil Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 55 |
| Radio Set | R |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Truck Driver |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1906 |
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.
3 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Donahue | Head | — | 24 | ~1906 |
| John Donahue | Son | — | ~1930 | |
| Dorothy Donahue | Spouse | — | 19 | ~1911 |
Census Appearances
1920
San Francisco, …
Other, age 13
San Francisco, California · implied b. ~1907 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donohue |
| Given Name | John |
| Relationship to Head | Nephew |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
San Francisco, …
Head, age 24
San Francisco, California · implied b. ~1906 — 3 household members
| Surname | Donahue |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | California |
| Age at First Marriage | 22 |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | Truck Driver |
| Industry | Oil Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 55 |
| Radio Set | R |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Other, age 35
San-Francisco-County, California · implied b. ~1905 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donahoe |
| Given Name | John J. |
| Relationship to Head | nephew |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Occupation | manager |
| Industry | property |
| Class of Worker | PW |
| Highest Grade | G 8 |
| 1935 Residence | Same house |
| 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 John Donahue across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Donahue
Head · 1930 · age 24 · b. ~1906 · California
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — San Francisco, California
Open full size
1930 US Federal Census — San Francisco, California
Page Contents
50 people indexed on this census page (ia:1930:californiacensus00reel201:0523)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank Conklin | 76 | Head | Salesman | Irish Free State |
| 2 | Margaret Conklin | 58 | Wife | — | North Ireland |
| 3 | Maurice Conklin | 30 | Son | Attorney | California |
| 4 | Frank Conklin | 21 | Son | Teacher | California |
| 5 | Alice Conklin | 27 | Daughter | — | California |
| 6 | Louise Grug | 60 | Head | — | Ohio |
| 7 | Martin O'Looney | 45 | Head | Insurance | Irish Free State |
| 8 | Birdie F. O'Looney | 41 | Wife | — | Irish Free State |
| 9 | Margaret M. O'Looney | 19 | Daughter | — | California |
| 10 | Kathleen O'Looney | 18 | Daughter | — | California |
| 11 | Martin J. O'Looney | 17 | Son | — | California |
| 12 | Daniel F. O'Looney | 15 | Daughter | — | California |
| 13 | James S. O'Looney | 14 | Son | — | California |
| 14 | John A. O'Looney | 11 | Son | — | California |
| 15 | Dolores A. O'Looney | 7 | Daughter | — | California |
| 16 | Geraldine O'Looney | 4 | Daughter | — | California |
| 17 | Clare M. O'Looney | 0 | Daughter | — | California |
| 18 | Helen B. Hawn | 45 | Head | Hair Work | Massachusetts |
| 19 | Mary A. Hawn | 43 | Sister | Hair Work | Utah |
| 20 | Rose R. Hawn | 35 | Sister | Hair Work | Utah |
| 21 | Anne W. Hawn | 34 | Sister | Secretary | Utah |
| 22 | Ruth Hawn | 32 | Sister | Stenographer | Utah |
| 23 | Lester Thatcher | 43 | Head | Electrician | Indiana |
| 24 | Lillian Thatcher | 40 | Wife | — | Nebraska |
| 25 | Robert Thatcher | 17 | Son | — | California |
| 26 | Jean Thatcher | 14 | Daughter | — | California |
| 27 | John Lundberg | 84 | Father-in-law | — | Sweden |
| 28 | Ingred Lundberg | 75 | Mother-in-law | — | Sweden |
| 29 | Michael J. Burn | 58 | Head | — | Free State |
| 30 | Catherine Burn | 55 | Wife | — | California |
| 31 | Catherine M. Burn | 24 | Daughter | Stenographer | California |
| 32 | Imelda N. Burn | 22 | Daughter | Stenographer | California |
| 33 | Jacob J. Schleaf | 40 | Son-in-law | Engineer | California |
| 34 | Alice Schleaf | 32 | Daughter | — | California |
| 35 | Annie N. Bacon | 45 | Sister-in-law | Nurse | California |
| 36 | Augustus Lodge | 55 | Head | Carpenter | California |
| 37 | Flora Purcell | 68 | Sister | — | Massachusetts |
| 38 | Niels H. Adair | 40 | Head | Service | Denmark |
| 39 | Hulda M. Adair | 34 | Wife | — | Finland |
| 40 | Niels H. Adair | 9 | Son | — | California |
| 41 | Robert G. Adair | 5 | Son | — | California |
| 42 | Clement L. Puttner | 34 | Head | Accountant | Louisiana |
| 43 | Gertrude Puttner | 30 | Wife | — | Pennsylvania |
| 44 | Helen P. Puttner | 10 | Daughter | — | Pennsylvania |
| 45 | Frances M. Puttner | 8 | Daughter | — | Pennsylvania |
| 46 | Clement L. Puttner | 3 | Son | — | California |
| 47 | Dorothy J. Puttner | 1 | Daughter | — | California |
| 48 | John J. Donahue THIS PERSON | 24 | Head | Truck Driver | California |
| 49 | Dorothy E. Donahue | 19 | Wife | — | California |
| 50 | John R. Donahue | 0 | Son | — | 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)