JH
John Hogan — 1940 US Census Record
Model Tree available1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this John Hogan across the 1920, 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed), with identified parents Daniel & Mary — first a head (b.~1878), then head of a 3-person household.
Age 62
b. ~1878
Male
Head
Born: California
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Hogan |
| Given Name | John W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | SAN FRANCISCO |
| 1935 Residence (County) | San Francisco |
| Additional Details | |
| Occupation | Pressman |
| Industry | Printing |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 3600 |
| Highest Grade | No 8 |
| 1935 Residence | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Pressman |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1878 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Grace Hogan | Daughter | — | 25 | ~1915 |
| John Hogan | Head | — | 62 | ~1878 |
| Mary Hogan | Spouse | — | 53 | ~1887 |
Census Appearances
1920
San Francisco, …
Son, age 42
San Francisco, California · implied b. ~1878 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hogan |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
San Francisco, …
Head, age 53
San Francisco, California · implied b. ~1877 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hogan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | California |
| Age at First Marriage | 30 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Pressman |
| Industry | Printing Office |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 6000 |
| Radio Set | R |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Head, age 62
San-Francisco-County, California · implied b. ~1878 — 3 household members
| Surname | Hogan |
| Given Name | John W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | SAN FRANCISCO |
| 1935 Residence (County) | San Francisco |
| Occupation | Pressman |
| Industry | Printing |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 3600 |
| Highest Grade | No 8 |
| 1935 Residence | California |
| 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 Hogan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Daniel Hogan (~0.92 confidence) and mother Mary Hogan (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Daniel Hogan
b. ~1840
Source father
● Household
· direct · ~0.92
Mother
Mary Hogan
b. ~1850
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Hogan
Head · 1940 · age 62 · b. ~1878 · California
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — San-Francisco-County, California
Open full size
1940 US Federal Census — San-Francisco-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00310-00099)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John J. Greggains | 51 | Head | Teamster | California |
| 42 | Mary J. Greggains | 51 | Wife | — | California |
| 43 | Harold W. Greggains | 24 | Son | Bottler | California |
| 44 | June R. Greggains | 18 | Daughter | — | California |
| 45 | Louis Cordes | 55 | Head | Butcher | California |
| 46 | Gene J. Finnigan | 28 | Head | Bartender | California |
| 47 | Patrick J. Tinney | 66 | Head | — | Ireland |
| 48 | Delia T. Tinney | 64 | Wife | — | Eire |
| 49 | Henry C. Tinney | 38 | Son | Clerk | California |
| 50 | Joseph E. Tinney | 29 | Son | Attorney | California |
| 51 | Ethel Connolly | 38 | Daughter | Secretary | California |
| 52 | Patricia M. Connolly | 18 | G-Daughter | — | California |
| 53 | Joseph H. Connolly | 8 | G-Son | — | California |
| 54 | Charles F. Daley | 48 | Head | Clerk | California |
| 55 | Sadie G. Daley | 68 | Mother | — | Germany |
| 56 | John W. Hogan THIS PERSON | 62 | Head | Pressman | California |
| 57 | Mary A. Hogan | 53 | Wife | — | California |
| 58 | Grace M. Hogan | 25 | Daughter | Bookkeeper | California |
| 59 | Julia A. Daley | 56 | Head | — | Ireland |
| 60 | Anne Mcloughlan | 64 | Lodger | — | Ireland |
| 61 | Ubaldo Rispoli | 53 | Head | Stonemason | Italy |
| 62 | Edythe Rispoli | 45 | Wife | — | Illinois |
| 63 | Ellen E. Collins | 87 | Head | — | Ireland |
| 64 | Margaret A. Collins | 50 | Daughter | — | California |
| 65 | James F. Collins | 48 | Son | Driver | California |
| 66 | Ethelbert Neil | 44 | Head | Carpenter | California |
| 67 | Mary P. Bowman | 37 | Wife | — | California |
| 68 | Loanna J. Bowman | 16 | Daughter | Nya Clerical | California |
| 69 | Margaret A. Bowman | 13 | Daughter | — | California |
| 70 | Theodora M. Bowman | 12 | Daughter | — | California |
| 71 | Neil E. Bowman | 1 | Son | — | California |
| 72 | Robert D. Harker | 40 | Brother | Farm Worker | California |
| 73 | Ralph F. Mccomas | 29 | Head | Tinter | California |
| 74 | Margaret Mccomas | 28 | Wife | — | Ireland |
| 75 | Shirley M. Mccomas | 5 | Daughter | — | California |
| 76 | Ralph J. Mccomas | 2 | Son | — | California |
| 77 | John W. Mcauliffe | 30 | Head | Steamfitter | New York |
| 78 | Edna A. Mcauliffe | 31 | Wife | Bookkeeper | California |
| 79 | Theresa M. Crowley | 45 | Head | Nurse | California |
| 80 | June Crowley | 16 | Daughter | New Worker | California |
Pedigree Summary
John
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)