MP
Margaret Peterson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Alameda, California
Our Model Tree links this Margaret Peterson across the 1920, 1930 and 1940 US Censuses in Alameda, California (XGBoost, ~Confirmed) — first a spouse (b.~1886), then head of a 3-person household.
Age 44
b. ~1886
Female
Spouse
Born: Australia
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Alameda, California |
| Surname | Peterson |
| Given Name | Margaret G |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Australia |
| Naturalization Status | Naturalized |
| Year of Immigration | 1887 |
| Age at First Marriage | 26 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Additional Details | |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birthplace (normalized) | australia |
| Township / Ward | Oakland City Pt |
| Est. Birth Year | ~1886 |
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 1930 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Peterson | Daughter | — | 16 | ~1914 |
| Ray Peterson | Head | — | 44 | ~1886 |
| Margaret Peterson | Spouse | — | 44 | ~1886 |
Census Appearances
1920
Alameda, California
Spouse, age 35
Alameda, California · implied b. ~1885 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Australia |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Am. Cit. |
| Birthplace (normalized) | australia |
1930
Alameda, California
Spouse, age 44
Alameda, California · implied b. ~1886 — 3 household members
| Surname | Peterson |
| Given Name | Margaret G |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Australia |
| Naturalization Status | Naturalized |
| Year of Immigration | 1887 |
| Age at First Marriage | 26 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birthplace (normalized) | australia |
1940
Alameda-County, California
Spouse, age 54
Alameda-County, California · implied b. ~1886 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Petersen |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Australia |
| 1935 Residence (City) | Oakland |
| 1935 Residence (County) | Alameda |
| Naturalization Status | Naturalized |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birthplace (normalized) | australia |
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 Margaret Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Margaret Peterson
Spouse · 1930 · age 44 · b. ~1886 · 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 — Alameda, California
Open full size
1930 US Federal Census — Alameda, California
Page Contents
50 people indexed on this census page (ia:1930:15thcensuspopula102unit:1113)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lawrence H Rushmer | 28 | Head | Chemist | Utah |
| 2 | Elizabeth A Rushmer | 27 | Wife | — | California |
| 3 | John B Rushmer | 3 | Son | — | California |
| 4 | Barbara E Rushmer | 1 | Daughter | — | California |
| 5 | Ardis Hagle | 18 | Niece | Nurse | Michigan |
| 6 | Arthur L Kerr | 44 | Head | Bookkeeper | California |
| 7 | Jewel R Kerr | 33 | Wife | — | California |
| 8 | Edna J Kerr | 10 | Daughter | — | California |
| 9 | Allan W Kerr | 4 | Son | — | California |
| 10 | Augusta Garrigues | 63 | Mother | — | California |
| 11 | Harry Spaulding | 52 | Head | Manager Dept | Iowa |
| 12 | Nora Spaulding | 50 | Wife | — | Iowa |
| 13 | Wesley Williams | 24 | Step-son | Stenographer | California |
| 14 | Chester W Skaggs | 42 | Head | Broker | California |
| 15 | Julia J Skaggs | 36 | Wife | — | California |
| 16 | Elizabeth A Skaggs | 1 | Daughter | — | California |
| 17 | Ellen Brennan | 19 | Maid | Maid | Irish Free State |
| 18 | Adelbert C Sigwart | 28 | Head | Salesman | Germany |
| 19 | Lucia C Sigwart | 26 | Wife | — | California |
| 20 | August Sigwart | 71 | Father | Merchant | Germany |
| 21 | William B Kern | 28 | Head | Agent | California |
| 22 | Helen C Kern | 24 | Wife | — | Illinois |
| 23 | Marie L Kern | 1 | Daughter | — | California |
| 24 | Burton A Olson | 36 | Head | Salesmanager | California |
| 25 | Ethel F Olson | 36 | Wife | Teacher | California |
| 26 | Emma Tintergen | 58 | Mother-in-law | — | California |
| 27 | Ritter Holman | 35 | Head | Underwriter | California |
| 28 | Mary F Holman | 36 | Wife | — | Canada Eng |
| 29 | Alice L Renouf | 65 | Mother-in-law | — | Canada Eng |
| 30 | Allan Parrish | 31 | Head | Agent | California |
| 31 | Elizabeth Parrish | 24 | Wife | — | California |
| 32 | Elizabeth Parrish | 1 | Daughter | — | California |
| 33 | John J Healy | 56 | Head | Asst Cashier | Irish Free State |
| 34 | Lillian Healy | 55 | Wife | — | Irish Free State |
| 35 | Frances J Healy | 28 | Son | Clerk | New York |
| 36 | Ray F Peterson | 44 | Head | Manager | Washington |
| 37 | Margaret G Peterson THIS PERSON | 44 | Wife | — | Australia |
| 38 | Margaret A Peterson | 16 | Daughter | — | California |
| 39 | Alexander N Jenner | 53 | Head | — | New York |
| 40 | Edna M Le Grand | 57 | Daughter | — | New York |
| 41 | Eleanor M Le Grand | 18 | Daughter | — | New Jersey |
| 42 | Charles A Nesbitt | 45 | Head | Clerk | California |
| 43 | Grace O Nesbitt | 50 | Wife | — | California |
| 44 | Charles W Nesbitt | 8 | Son | — | California |
| 45 | Dorothy V Sullivan | 26 | Daughter | Clerk | California |
| 46 | Ashley W Mcdermott | 43 | Sister-in-law | Stenographer | California |
| 47 | Helene C Mcdermott | 19 | Niece | Clerk | California |
| 48 | Arthur P Fulmer | 39 | Head | Accountant | Illinois |
| 49 | Ethel W Fulmer | 37 | Wife | Cosmetologist | Indiana |
| 50 | Paul W Fulmer | 13 | 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)