FS
Francis Sullivan — 1930 US Census Record
Linked across censuses1930 United States Federal Census · San Francisco, California
Our Model Tree links this Francis Sullivan across the 1930 and 1940 US Censuses in San Francisco, California (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 15-person household.
Age 5
b. ~1925
Male
Son
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | San Francisco, California |
| Surname | Sullivan |
| Given Name | Francis |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read/Write | No |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1925 |
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.
15 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Francis | Age | Birth yr |
|---|---|---|---|---|
| Patrick Sullivan | Head | — | 60 | ~1870 |
| Patrick Sullivan | Son | — | 25 | ~1905 |
| Mary Sullivan | Spouse | — | 55 | ~1875 |
| Margaret Sullivan | Daughter | — | 13 | ~1917 |
| Robert Sullivan | Son | — | 3 | ~1927 |
| Thomas Sullivan | Son | — | 19 | ~1911 |
| Francis Sullivan | Son | — | 5 | ~1925 |
| Joseph Sullivan | Son | — | 15 | ~1915 |
| Helen Sullivan | Daughter | — | 9 | ~1921 |
| Edward Sullivan | Son | — | 1 | ~1929 |
| James Sullivan | Son | — | 21 | ~1909 |
| Theresa Sullivan | Daughter | — | 7 | ~1923 |
| Catherine Sullivan | Daughter | — | 11 | ~1919 |
| William Sullivan | Son | — | 17 | ~1913 |
| John Sullivan | Son | — | 23 | ~1907 |
Census Appearances
1930
San Francisco, …
Son, age 5
San Francisco, California · implied b. ~1925 — 15 household members
| Surname | Sullivan |
| Given Name | Francis |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | No |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Son, age 14
San-Francisco-County, California · implied b. ~1926 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Frank F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Highest Grade | S 6 |
| 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 Francis Sullivan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Francis Sullivan
Son · 1930 · age 5 · b. ~1925 · California
★ You are viewing this record
Sibling
Patrick Sullivan
Sibling · 1930 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Sullivan
Sibling · 1930 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Sullivan
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Sullivan
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Sullivan
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Sullivan
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Sullivan
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Sullivan
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theresa Sullivan
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Sullivan
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Sullivan
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Sullivan
Sibling · 1930 · age 13
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 — San Francisco, California
Open full size
1930 US Federal Census — San Francisco, California
Page Contents
50 people indexed on this census page (ia:1930:15thcensuspopula100unit:0226)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Higgins | 45 | Head | — | California |
| 2 | Mary Higgins | 40 | Wife | — | California |
| 3 | John Jr. Higgins | 18 | Son | — | California |
| 4 | Robert Higgins | 16 | Son | — | California |
| 5 | James Higgins | 14 | Son | — | California |
| 6 | Margaret Higgins | 12 | Daughter | — | California |
| 7 | William Higgins | 10 | Son | — | California |
| 8 | Thomas Higgins | 8 | Son | — | California |
| 9 | Catherine Higgins | 6 | Daughter | — | California |
| 10 | Joseph Higgins | 4 | Son | — | California |
| 11 | Francis Higgins | 2 | Son | — | California |
| 12 | Theresa Higgins | 1 | Daughter | — | California |
| 13 | George Miller | 52 | Head | Farmer | Germany |
| 14 | Anna Miller | 48 | Wife | — | Germany |
| 15 | George Jr. Miller | 21 | Son | Laborer | California |
| 16 | Fred Miller | 19 | Son | Laborer | California |
| 17 | Helen Miller | 17 | Daughter | — | California |
| 18 | Albert Miller | 15 | Son | — | California |
| 19 | Louise Miller | 13 | Daughter | — | California |
| 20 | Edward Miller | 11 | Son | — | California |
| 21 | Martha Miller | 9 | Daughter | — | California |
| 22 | Henry Miller | 7 | Son | — | California |
| 23 | Ruth Miller | 5 | Daughter | — | California |
| 24 | Paul Miller | 3 | Son | — | California |
| 25 | Dorothy Miller | 1 | Daughter | — | California |
| 26 | Patrick Sullivan | 60 | Head | Farmer | Ireland |
| 27 | Mary Sullivan | 55 | Wife | — | Ireland |
| 28 | Patrick Jr. Sullivan | 25 | Son | Laborer | California |
| 29 | John Sullivan | 23 | Son | Laborer | California |
| 30 | James Sullivan | 21 | Son | Laborer | California |
| 31 | Thomas Sullivan | 19 | Son | Laborer | California |
| 32 | William Sullivan | 17 | Son | — | California |
| 33 | Joseph Sullivan | 15 | Son | — | California |
| 34 | Margaret Sullivan | 13 | Daughter | — | California |
| 35 | Catherine Sullivan | 11 | Daughter | — | California |
| 36 | Helen Sullivan | 9 | Daughter | — | California |
| 37 | Theresa Sullivan | 7 | Daughter | — | California |
| 38 | Francis Sullivan THIS PERSON | 5 | Son | — | California |
| 39 | Robert Sullivan | 3 | Son | — | California |
| 40 | Edward Sullivan | 1 | Son | — | California |
| 41 | Michael O'Brien | 50 | Head | Farmer | Ireland |
| 42 | Catherine O'Brien | 45 | Wife | — | Ireland |
| 43 | Michael Jr. O'Brien | 20 | Son | Laborer | California |
| 44 | John O'Brien | 18 | Son | Laborer | California |
| 45 | James O'Brien | 16 | Son | — | California |
| 46 | Mary O'Brien | 14 | Daughter | — | California |
| 47 | Catherine Jr. O'Brien | 12 | Daughter | — | California |
| 48 | Helen O'Brien | 10 | Daughter | — | California |
| 49 | Thomas O'Brien | 8 | Son | — | California |
| 50 | William O'Brien | 6 | Son | — | California |
Related Census Records
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)