JQ
John Quinn — 1920 US Census Record
Linked across censuses1920 United States Federal Census · San Francisco, California
Our Model Tree links this John Quinn across the 1900, 1910 and 1920 US Censuses in San Francisco, California (XGBoost, ~Confirmed) — first a head (b.~1850), then head of a 3-person household.
Age 70
b. ~1850
Male
Head
Born: Ireland
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | San Francisco, California |
| Surname | Quinn |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 70 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1880 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Messenger |
| Industry | City |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1886 |
| Birthplace (normalized) | ireland |
| Occupation | Messenger |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1850 |
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 1920 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Christina Quinn | Daughter | — | 32 | ~1888 |
| John Quinn | Head | — | 70 | ~1850 |
| Ellen Quinn | Spouse | — | 65 | ~1855 |
Census Appearances
1900
San Francisco, …
Head, age 52
San Francisco, California · implied b. ~1848 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Quinn |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Ireland |
| Birth Month | Jun |
| Birth Year | 1848 |
| Year of Immigration | 1870 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Teamster |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
San Francisco, …
Head, age 62
San Francisco, California · implied b. ~1848 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Quinn |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 29 |
| Year of Immigration | 1873 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Messenger |
| Industry | Dept of Public Works |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
San Francisco, …
Head, age 70
San Francisco, California · implied b. ~1850 — 3 household members
| Surname | Quinn |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 70 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1880 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Messenger |
| Industry | City |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1886 |
| Birthplace (normalized) | ireland |
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 Quinn across 3 US Census years (1900, 1910 and 1920) in San Francisco, California, using XGBoost record linkage.
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This person
Anchor record
John Quinn
Head · 1920 · age 70 · b. ~1850 · California
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — San Francisco, California
Open full size
1920 US Federal Census — San Francisco, California
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu141unit:0999)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | John Black | 30 | Boarder | Machinist | Scotland |
| 52 | Thomas Blackwell | 45 | Head | Machinist | California |
| 53 | Lucy Blackwell | 43 | Wife | Laundry | California |
| 54 | Arthur Blackwell | 23 | Son | Machinist | California |
| 55 | David R Hughes | 51 | Head | Leatherworker | Pennsylvania |
| 56 | Ida Hughes | 44 | Wife | — | Oregon |
| 57 | George Johnson | 77 | Head | — | Canada |
| 58 | Sarah Johnson | 72 | Wife | — | Canada |
| 59 | Carl Martens | 38 | Head | Cabinet Maker | California |
| 60 | Anna Martens | 34 | Wife | — | California |
| 61 | John Mcintyre | 34 | Head | Pipefitter | Scotland |
| 62 | Agnes Mcintyre | 36 | Wife | — | Scotland |
| 63 | John Mcintyre | 5 | Son | — | California |
| 64 | Thomas Mulford | 29 | Head | Painter | Scotland |
| 65 | Marguerite Mulford | 29 | Wife | — | Scotland |
| 66 | Mary Mulford | 4 | Daughter | — | California |
| 67 | Agnes Mulford | 1 | Daughter | — | California |
| 68 | George Hayden | 63 | Head | — | Ireland |
| 69 | Bridget Hayden | 62 | Wife | — | Ireland |
| 70 | George V. Hayden | 30 | Son | Clerk | California |
| 71 | Martin Sivertsen | 36 | Head | Station Man | California |
| 72 | Mary Sivertsen | 36 | Wife | — | California |
| 73 | Martin F. Sivertsen | 8 | Son | — | California |
| 74 | Henry Drewes | 61 | Father | Butcher | Germany |
| 75 | Richard G. Cleaves | 51 | Head | Inspector | California |
| 76 | Anna Cleaves | 48 | Wife | — | California |
| 77 | John Peterson | 45 | Head | Cement Worker | Finland |
| 78 | Hannie Peterson | 45 | Wife | — | Finland |
| 79 | Carl Peterson | 7 | Son | — | California |
| 80 | Axel Peterson | 5 | Son | — | California |
| 81 | Conrad Doering | 60 | Boarder | Carpenter | Germany |
| 82 | John Quinn THIS PERSON | 70 | Head | Messenger | Ireland |
| 83 | Ellen Quinn | 65 | Wife | — | Ireland |
| 84 | Christina Quinn | 32 | Daughter | Wrapper | California |
| 85 | Hanna Landon | 58 | Head | — | New York |
| 86 | Jeremiah Landon | 30 | Son | Oiler | California |
| 87 | Leo Landon | 27 | Son | Carpenter | California |
| 88 | Anna Landon | 22 | Daughter | Stenographer | California |
| 89 | Julia Landon | 19 | Daughter | Stenographer | California |
| 90 | Harry Hess | 38 | Head | Capper | California |
| 91 | Ethel Hess | 32 | Wife | — | California |
| 92 | Harry Hess | 7 | Son | — | California |
| 93 | Frederick Zurn | 25 | Head | Carpenter | Ohio |
| 94 | Gertrude Zurn | 23 | Wife | — | California |
| 95 | George H. Knecht | 32 | Head | Driver | California |
| 96 | Loretta Knecht | 29 | Wife | — | California |
| 97 | Daniel Hanley | 59 | Head | Blacksmith | Massachusetts |
| 98 | Mabel Hanley | 45 | Wife | — | California |
| 99 | Ethel Hanley | 14 | Daughter | — | California |
| 100 | W. Schubert | 42 | Head | — | Illinois |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)