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Mary Madden — 1930 US Census Record
Linked across censuses1930 United States Federal Census · San Francisco, California
Our Model Tree links this Mary Madden across the 1920, 1930 and 1940 US Censuses in San Francisco, California (XGBoost, ~Confirmed) — first a head (b.~1866), then head of a 8-person household.
Age 64
b. ~1866
Female
Head
Born: California
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | San Francisco, California |
| Surname | Madden |
| Given Name | Mary E. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Widowed |
| Birthplace | California |
| Age at First Marriage | 22 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 4000 |
| Radio Set | R |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1866 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Alice Madden | Daughter | — | 36 | ~1894 |
| Agnes Madden | Daughter | — | 32 | ~1898 |
| Helen Madden | Daughter | — | 26 | ~1904 |
| Mary Madden | Head | — | 64 | ~1866 |
| Francis Madden | Son | — | 28 | ~1902 |
| John Madden | Son | — | 38 | ~1892 |
| Leo Madden | Son | — | 34 | ~1896 |
| George Madden | Son | — | 30 | ~1900 |
Census Appearances
1920
San Francisco, …
Head, age 53
San Francisco, California · implied b. ~1867 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Madden |
| Given Name | Marguerite |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Widowed |
| Birthplace | California |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Milliner |
| Industry | Ladies Millinery |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth State | California |
| Birth Country | United States |
| Year of Naturalization | R |
| Birthplace (normalized) | california |
1930
San Francisco, …
Head, age 64
San Francisco, California · implied b. ~1866 — 8 household members
| Surname | Madden |
| Given Name | Mary E. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Widowed |
| Birthplace | California |
| Age at First Marriage | 22 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 4000 |
| Radio Set | R |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Head, age 74
San-Francisco-County, California · implied b. ~1866
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Madden |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 74 |
| Marital Status | Widowed |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| 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 Mary Madden across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Madden
Head · 1930 · age 64 · b. ~1866 · 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:californiacensus00reel210:0365)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | N. E. Hancock | 45 | Head | Merchant | California |
| 2 | Lulu Hancock | 42 | Wife | — | California |
| 3 | N. E. Jr. Hancock | 15 | Son | — | California |
| 4 | Alice Hancock | 12 | Daughter | — | California |
| 5 | A. G. Lund | 40 | Lodger | Salesman | California |
| 6 | Elizabeth Lund | 38 | Lodger | Teacher | California |
| 7 | H. B. Chambers | 48 | Head | Manager | California |
| 8 | Harriet Chambers | 46 | Wife | — | California |
| 9 | H. B. Middleton | 22 | Boarder | Clerk | California |
| 10 | James Middleton | 20 | Boarder | — | California |
| 11 | Emily Mcclatchy | 50 | Head | — | California |
| 12 | H. J. Mcclatchy | 28 | Son | Manager | California |
| 13 | Leo Mcclatchy | 26 | Son | — | California |
| 14 | James Mcclatchy | 24 | Son | — | California |
| 15 | Emily Mcclatchy | 22 | Daughter | — | California |
| 16 | Ralph Mcclatchy | 20 | Son | — | California |
| 17 | Ellsworth Mcclatchy | 18 | Son | — | California |
| 18 | Edward Mcclatchy | 16 | Son | — | California |
| 19 | Amelia Vidorich | 50 | Head | — | Yugoslavia |
| 20 | Mary Vidorich | 24 | Daughter | — | California |
| 21 | M. J. Johnson | 66 | Head | Retired | Illinois |
| 22 | Elizabeth Johnson | 30 | Daughter | — | California |
| 23 | Mary E. Madden THIS PERSON | 64 | Head | — | California |
| 24 | John Madden | 38 | Son | — | California |
| 25 | Alice Madden | 36 | Daughter | — | California |
| 26 | Leo Madden | 34 | Son | — | California |
| 27 | Agnes Madden | 32 | Daughter | — | California |
| 28 | George Madden | 30 | Son | — | California |
| 29 | Francis Madden | 28 | Son | — | California |
| 30 | Helen Madden | 26 | Daughter | — | California |
| 31 | James R. Green | 54 | Head | Merchant | Illinois |
| 32 | Minnie Green | 52 | Wife | — | California |
| 33 | August Wolf | 56 | Head | Salesman | Indiana |
| 34 | Eleanor Wolf | 51 | Wife | — | Kentucky |
| 35 | Blazey S. Vidorich | 45 | Head | — | California |
| 36 | Monica Vidorich | 18 | Daughter | Stenographer | California |
| 37 | C. D. Gagnon | 57 | Head | — | Ohio |
| 38 | Edward Gagnon | 18 | Son | — | Ohio |
| 39 | Robert M. Hamilton | 52 | Head | Salesman | Michigan |
| 40 | Jane E. Hamilton | 51 | Wife | Nurse | Minnesota |
| 41 | Robert M. Jr. Hamilton | 24 | Son | — | California |
| 42 | James Hamilton | 22 | Son | — | California |
| 43 | Edward Hamilton | 20 | Son | — | California |
| 44 | Alice Hamilton | 18 | Daughter | — | California |
| 45 | Mary Hamilton | 16 | Daughter | — | California |
| 46 | Helen Hamilton | 14 | Daughter | — | California |
| 47 | John Hamilton | 12 | Son | — | California |
| 48 | William Hamilton | 10 | Son | — | California |
| 49 | George Hamilton | 8 | Son | — | California |
| 50 | Francis Hamilton | 6 | 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)