MP
Mary Parsons — 1930 US Census Record
Linked across censuses1930 United States Federal Census · San Francisco, California
Our Model Tree links this Mary Parsons across the 1920 and 1930 US Censuses in San Francisco, California (XGBoost, ~Confirmed) — first a head (b.~1879), then head of a 6-person household.
Age 51
b. ~1879
Female
Head
Born: California
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | San Francisco, California |
| Surname | Parsons |
| Given Name | Mary J. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Widowed |
| Birthplace | California |
| Age at First Marriage | 21 |
| Father's Birthplace | Maine |
| Mother's Birthplace | Maine |
| Additional Details | |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 31 |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | San Francisco City |
| Est. Birth Year | ~1879 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Parsons | Head | — | 51 | ~1879 |
| Robert Parsons | Son | — | 19 | ~1911 |
| Frank Parsons | Son | — | 17 | ~1913 |
| Patricia Parsons | Daughter | — | 1 | ~1929 |
| Edith Parsons | Spouse | — | 22 | ~1908 |
| Charles Parsons | Son | — | 21 | ~1909 |
Census Appearances
1920
San Francisco, …
Head, age 39
San Francisco, California · implied b. ~1881 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Parsons |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Widowed |
| Birthplace | California |
| Father's Birthplace | Ireland |
| Mother's Birthplace | New York |
| Occupation | Ironer |
| Industry | laundry |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
San Francisco, …
Head, age 51
San Francisco, California · implied b. ~1879 — 6 household members
| Surname | Parsons |
| Given Name | Mary J. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Widowed |
| Birthplace | California |
| Age at First Marriage | 21 |
| Father's Birthplace | Maine |
| Mother's Birthplace | Maine |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 31 |
| 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 Parsons across 2 US Census years (1920 and 1930) in San Francisco, California, using XGBoost record linkage.
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This person
Anchor record
Mary Parsons
Head · 1930 · age 51 · b. ~1879 · 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:californiacensus00reel202:1054)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Leon Curtis | 40 | Head | Insurance | Minnesota |
| 52 | Lillian Curtis | 40 | Wife | — | Ireland |
| 53 | Mary J. Parsons THIS PERSON | 51 | Head | — | California |
| 54 | Charles Parsons | 21 | Son | — | California |
| 55 | Robert Parsons | 19 | Son | — | California |
| 56 | Frank Parsons | 17 | Son | Trimmer | California |
| 57 | Edith Parsons | 22 | Wife | — | California |
| 58 | Patricia Parsons | 1 | Daughter | — | California |
| 59 | William Parsons | 59 | Head | Sheet Metal | California |
| 60 | Alice Parsons | 58 | Wife | — | California |
| 61 | William Parsons | 27 | Son | — | California |
| 62 | John Parsons | 25 | Son | — | California |
| 63 | Edward Parsons | 23 | Son | — | California |
| 64 | George Parsons | 21 | Son | — | California |
| 65 | James Parsons | 19 | Son | — | California |
| 66 | Richard Parsons | 17 | Son | — | California |
| 67 | Robert Parsons | 15 | Son | — | California |
| 68 | Mary Parsons | 13 | Daughter | — | California |
| 69 | Alice Parsons | 11 | Daughter | — | California |
| 70 | William Hoffman | 46 | Head | Superintendent | West Virginia |
| 71 | Mary Hoffman | 45 | Wife | — | West Virginia |
| 72 | William Hoffman | 24 | Son | — | West Virginia |
| 73 | Mary Hoffman | 21 | Daughter-in-law | — | West Virginia |
| 74 | William Hoffman | 0 | Grandson | — | California |
| 75 | Sebastian Donnelly | 58 | Head | Manager | Ireland |
| 76 | Nellie Donnelly | 51 | Wife | — | Germany |
| 77 | Sebastian Donnelly | 28 | Son | — | California |
| 78 | Mildred Donnelly | 19 | Daughter | — | California |
| 79 | William Donnelly | 47 | Head | Police Officer | California |
| 80 | Emma L. Donnelly | 49 | Wife | — | Ireland |
| 81 | Mary Donnelly | 51 | Head | — | Germany |
| 82 | Richard F. Lafontaine | 45 | Head | Printer | Canada Eng. |
| 83 | Mary Lafontaine | 44 | Wife | — | California |
| 84 | Richard Lafontaine | 15 | Son | — | California |
| 85 | Dorothy Lafontaine | 13 | Daughter | — | California |
| 86 | Robert Lafontaine | 11 | Son | — | California |
| 87 | Mary Lafontaine | 9 | Daughter | — | California |
| 88 | Charles N. Balla | 41 | Head | Police Officer | California |
| 89 | Edna Balla | 41 | Wife | — | Austria |
| 90 | Jane Lansing | 75 | Aunt-in-law | Housekeeper | Denmark |
| 91 | James Donnelly | 55 | Head | Policeman | Irish Free State |
| 92 | Annie Donnelly | 50 | Wife | — | Irish Free State |
| 93 | Annie Donnelly | 20 | Daughter | — | California |
| 94 | Patricia A. Donnelly | 4 | Daughter | — | California |
| 95 | William J. Walsh | 50 | Head | Janitor | Irish Free State |
| 96 | Alice Walsh | 38 | Wife | — | Irish Free State |
| 97 | Mary Walsh | 12 | Daughter | — | California |
| 98 | William Walsh | 10 | Son | — | California |
| 99 | Rebecca J. Bellinger | 53 | Head | Worker | Kentucky |
| 100 | Edith G. Bellinger | 21 | Daughter | — | Illinois |
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)