ML
Mary Lund — 1930 US Census Record
Linked across censuses1930 United States Federal Census · San Francisco, California
Our Model Tree links this Mary Lund across the 1920 and 1930 US Censuses in San Francisco, California (XGBoost, ~Confirmed) — first a spouse (b.~1882), then head of a 8-person household.
Age 48
b. ~1882
Female
Spouse
Born: Portugal
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | San Francisco, California |
| Surname | Lund |
| Given Name | Mary A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Portugal |
| Naturalization Status | Naturalized |
| Year of Immigration | 1901 |
| Age at First Marriage | 24 |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Additional Details | |
| Can Read/Write | Yes |
| Mother Tongue | Portuguese |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
| Township / Ward | San Francisco City |
| Est. Birth Year | ~1882 |
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 |
|---|---|---|---|---|
| Thomas Lund | Son | — | 20 | ~1910 |
| Marie Lund | Daughter | — | 15 | ~1915 |
| Maurice Lund | Son | — | 17 | ~1913 |
| Thomas Lund | Head | — | 65 | ~1865 |
| Vera Pizarro | Other | — | 66 | ~1864 |
| Lawrence Lund | Son | — | 19 | ~1911 |
| Mary Lund | Spouse | — | 48 | ~1882 |
| Lila Lund | Other | — | 23 | ~1907 |
Census Appearances
1920
San Francisco, …
Spouse, age 38
San Francisco, California · implied b. ~1882 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lund |
| Given Name | Marie G. V. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Portugal |
| Year of Immigration | 1888 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Portuguese |
| Birth Country | Portugal |
| Year of Naturalization | 1896 |
| Birthplace (normalized) | portugal |
1930
San Francisco, …
Spouse, age 48
San Francisco, California · implied b. ~1882 — 8 household members
| Surname | Lund |
| Given Name | Mary A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Portugal |
| Naturalization Status | Naturalized |
| Year of Immigration | 1901 |
| Age at First Marriage | 24 |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Can Read/Write | Yes |
| Mother Tongue | Portuguese |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
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 Lund across 2 US Census years (1920 and 1930) in San Francisco, California, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Lund
Spouse · 1930 · age 48 · b. ~1882 · California
★ You are viewing this record
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
43 people indexed on this census page (ia:1930:californiacensus00reel203:0435)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Katherine Keating | 84 | Mother-in-law | — | Irish Free State |
| 2 | John P. O'Connor | 58 | Head | Stationary Fireman | Irish Free State |
| 3 | Mary O'Connor | 53 | Wife | — | Irish Free State |
| 4 | James P. O'Connor | 27 | Son | Salesman | Massachusetts |
| 5 | John J. O'Connor | 25 | Son | Clerk | Massachusetts |
| 6 | Mildred C. O'Connor | 23 | Daughter | Private Secretary | Massachusetts |
| 7 | Albert J. O'Connor | 21 | Son | Clerk | Massachusetts |
| 8 | Richard E. O'Connor | 20 | Son | Conductor | Massachusetts |
| 9 | Ruth E. O'Connor | 18 | Daughter | — | California |
| 10 | Evelyn V. O'Connor | 14 | Daughter | — | California |
| 11 | Robert J. O'Connor | 12 | Son | — | California |
| 12 | Lena Manning | 69 | Head | — | California |
| 13 | Alice Line | 47 | Daughter | — | California |
| 14 | John J. Line | 47 | Son-in-law | Supt Of Stations | California |
| 15 | Ethel J. Browning | 43 | Daughter | — | California |
| 16 | Charles J. Browning | 47 | Son-in-law | Deputy Clerk | Iowa |
| 17 | Carolyn Petersen | 41 | Daughter | Saleslady | California |
| 18 | Charles Petersen | 48 | Son-in-law | — | California |
| 19 | Annie Elliott | 62 | Sister | Housekeeper | California |
| 20 | Margaret Bielawski | 52 | Head | Dressmaker | Pennsylvania |
| 21 | William H. Boger | 53 | Head | Purchasing Agent | Pennsylvania |
| 22 | Sylvan A. Boger | 37 | Wife | — | California |
| 23 | Virginia Lee Boger | 7 | Daughter | — | California |
| 24 | David Marblestone | 44 | Head | Adv. Salesman | Austria |
| 25 | Hattie Marblestone | 36 | Wife | — | California |
| 26 | Marjorie Marblestone | 12 | Daughter | — | California |
| 27 | Rhoda Marblestone | 5 | Daughter | — | California |
| 28 | Isaac Jacobs | 72 | Father-in-law | — | Germany |
| 29 | George M. Barley | 56 | Head | Silversmith | California |
| 30 | Adelaide E. Barley | 52 | Wife | — | California |
| 31 | Abraham Screnghy | 54 | Head | Dealer | California |
| 32 | Esther Screnghy | 53 | Wife | — | Switzerland |
| 33 | Thomas Lund | 65 | Head | Bridgeman | Norway |
| 34 | Mary A. Lund THIS PERSON | 48 | Wife | — | Portugal |
| 35 | Thomas B. Jr. Lund | 20 | Son | Fireman | California |
| 36 | Lila M. Lund | 23 | Daughter-in-law | — | California |
| 37 | Lawrence J. Lund | 19 | Son | Electrician | California |
| 38 | Maurice A. Lund | 17 | Son | — | California |
| 39 | Marie A. Lund | 15 | Daughter | — | California |
| 40 | Vera V. Pizarro | 66 | Lodger | Governess | California |
| 41 | Lola De Maria | 57 | Head | Cook | Mexico |
| 42 | William Garrison | 73 | Head | — | Georgia |
| 43 | Agnes Garrison | 70 | Wife | Laundress | Florida |
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)