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John Scanlon — 1920 US Census Record
Linked across censuses1920 United States Federal Census · San Francisco, California
Our Model Tree links this John Scanlon across the 1910 and 1920 US Censuses in San Francisco, California (XGBoost, ~Confirmed) — first a head (b.~1870), then head of a 9-person household.
Age 50
b. ~1870
Male
Head
Born: Ireland
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | San Francisco, California |
| Surname | Scanlon |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1890 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Plasterer |
| Industry | Building |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth Country | Ireland |
| Year of Naturalization | 1896 |
| Birthplace (normalized) | ireland |
| Occupation | Plasterer |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1870 |
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.
9 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| William Scanlon | Son | — | 14 | ~1906 |
| John Scanlon | Head | — | 50 | ~1870 |
| Loyola Scanlon | Son | — | 21 | ~1899 |
| Katherine Scanlon | Spouse | — | 44 | ~1876 |
| Helen Scanlon | Daughter | — | 7 | ~1913 |
| Arleen Scanlon | Daughter | — | 12 | ~1908 |
| Clare Scanlon | Son | — | 10 | ~1910 |
| Grace Scanlon | Daughter | — | 17 | ~1903 |
| Robert Scanlon | Son | — | 4 | ~1916 |
Census Appearances
1910
San Francisco, …
Head, age 39
San Francisco, California · implied b. ~1871 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Scanlon |
| Given Name | John D. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 15 |
| Year of Immigration | 1882 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Plasterer |
| Industry | Contractor |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
San Francisco, …
Head, age 50
San Francisco, California · implied b. ~1870 — 9 household members
| Surname | Scanlon |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1890 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Plasterer |
| Industry | Building |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth Country | Ireland |
| Year of Naturalization | 1896 |
| 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 Scanlon across 2 US Census years (1910 and 1920) in San Francisco, California, using XGBoost record linkage.
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This person
Anchor record
John Scanlon
Head · 1920 · age 50 · b. ~1870 · 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:1005)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Harriet Luzza | 17 | Daughter | Milliner | California |
| 52 | John Luzza | 15 | Son | — | California |
| 53 | Josephine Luzza | 13 | Daughter | — | California |
| 54 | Rose Luzza | 10 | Daughter | — | California |
| 55 | Auralia Luzza | 7 | Daughter | — | California |
| 56 | Romeo Luzza | 1 | Son | — | California |
| 57 | William Rollet | 37 | Head | Printer | France |
| 58 | Charles Rollet | 7 | Son | — | California |
| 59 | Mary Rollet | 8 | Daughter | — | California |
| 60 | Broder Eath | 49 | Boarder | Servant | California |
| 61 | Henry Wolfisberg | 40 | Head | Motorman | Switzerland |
| 62 | Rose Wolfisberg | 37 | Wife | — | California |
| 63 | Mary Wolfisberg | 10 | Daughter | — | California |
| 64 | Rose Wolfisberg | 9 | Daughter | — | California |
| 65 | Amelia Braun | 72 | Mother-in-law | — | Maryland |
| 66 | John Scanlon THIS PERSON | 50 | Head | Plasterer | Ireland |
| 67 | Katherine Scanlon | 44 | Wife | — | California |
| 68 | Loyola Scanlon | 21 | Son | Reporter | California |
| 69 | Grace Scanlon | 17 | Daughter | Operator | California |
| 70 | William Scanlon | 14 | Son | — | California |
| 71 | Arleen Scanlon | 12 | Daughter | — | California |
| 72 | Clare Scanlon | 10 | Son | — | California |
| 73 | Helen Scanlon | 7 | Daughter | — | California |
| 74 | Robert Scanlon | 4 | Son | — | California |
| 75 | Timothy Mahoney | 31 | Head | Car Inspector | Ireland |
| 76 | Mary Mahoney | 26 | Wife | — | Ireland |
| 77 | Mildred Mahoney | 2 | Son | — | California |
| 78 | Jeremiah Mahoney | 1 | Son | — | California |
| 79 | Michael Mcgrath | 50 | Head | Blacksmith | Ireland |
| 80 | Katherine Mcgrath | 45 | Wife | — | Ireland |
| 81 | John Mcgrath | 18 | Son | Clerk | California |
| 82 | Nora Mcgrath | 17 | Daughter | Stenographer | California |
| 83 | Marie Mcgrath | 15 | Daughter | — | California |
| 84 | Rose Mcgrath | 10 | Daughter | — | California |
| 85 | William Mcgrath | 8 | Son | — | California |
| 86 | Daniel Desmond | 55 | Head | Stevedore | Ireland |
| 87 | Gerald Desmond | 19 | Son | Driver | California |
| 88 | Daniel Desmond | 17 | Son | Electrician | California |
| 89 | Claire Desmond | 14 | Daughter | — | California |
| 90 | Lillian Desmond | 10 | Daughter | — | California |
| 91 | Christina Madison | 45 | Head | Servant | Sweden |
| 92 | David Madison | 38 | Boarder | Tanner | Sweden |
| 93 | John Hendricks | 47 | Head | Fireman | Belgium |
| 94 | Mary Hendricks | 38 | Wife | — | Belgium |
| 95 | Charles Hendricks | 13 | Son | — | Belgium |
| 96 | Julia Hendricks | 12 | Daughter | — | Washington |
| 97 | Mary Hendricks | 8 | Daughter | — | California |
| 98 | John Hendricks | 5 | Son | — | California |
| 99 | John Scanlon | 24 | Head | Machinist | California |
| 100 | Edna Scanlon | 21 | Wife | — | Iowa |
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)