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Mary Mayer — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Mayer across the 1920, 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1885), then head of a 5-person household.
Age 45
b. ~1885
Female
Spouse
Born: Austria
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Mayer |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Austria |
| Naturalization Status | Naturalized |
| Year of Immigration | 1911 |
| Age at First Marriage | 26 |
| Father's Birthplace | Austria |
| Mother's Birthplace | Austria |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Birth Country | Austria |
| Birthplace (normalized) | austria |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1885 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Anna Mayer | Daughter | — | 13 | ~1917 |
| Marie Mayer | Daughter | — | 17 | ~1913 |
| Mary Mayer | Daughter | — | 23 | ~1907 |
| Frank Mayer | Head | — | 58 | ~1872 |
| Mary Mayer | Spouse | — | 45 | ~1885 |
Census Appearances
1920
Cook, Illinois
Spouse, age 35
Cook, Illinois · implied b. ~1885 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mayer |
| Given Name | Maggie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Austria |
| Year of Immigration | 1910 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Austria |
| Mother's Birthplace | Austria |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth Country | Austria |
| Birthplace (normalized) | austria |
1930
Cook, Illinois
Spouse, age 45
Cook, Illinois · implied b. ~1885 — 5 household members
| Surname | Mayer |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Austria |
| Naturalization Status | Naturalized |
| Year of Immigration | 1911 |
| Age at First Marriage | 26 |
| Father's Birthplace | Austria |
| Mother's Birthplace | Austria |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Birth Country | Austria |
| Birthplace (normalized) | austria |
1940
Cook-County, Illinois
Spouse, age 54
Cook-County, Illinois · implied b. ~1886 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mayer |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Austria |
| 1935 Residence (City) | Minneapolis |
| 1935 Residence (County) | Hennepin |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Minnesota |
| Birth Country | Austria |
| Birthplace (normalized) | austria |
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 Mayer 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 Mayer
Spouse · 1930 · age 45 · b. ~1885 · Illinois
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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 — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
46 people indexed on this census page (ia:1930:illinoiscensus00reel469:0023)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Connell | 68 | Head | — | Ireland |
| 2 | Alice Connell | 37 | Daughter | Operator | Illinois |
| 3 | Loran Spencer | 36 | Head | Tool Maker | Ohio |
| 4 | Myrtle Spencer | 36 | Wife | — | Ohio |
| 5 | Dale Spencer | 13 | Son | — | Ohio |
| 6 | Loran Jr Spencer | 10 | Son | — | Ohio |
| 7 | Adolf Von Eitzen | 25 | Roomer | Florist | Germany |
| 8 | William Humburtel | 52 | Head | Stencil Cutter | Illinois |
| 9 | Adeline Humburtel | 20 | Daughter | — | Illinois |
| 10 | Carl Humburtel | 55 | Brother | Repair Shop | Germany |
| 11 | Alfred Hjertstedt | 80 | Head | None | Sweden |
| 12 | Anna C. Hjertstedt | 80 | Wife | None | Sweden |
| 13 | James Cunningham | 45 | Head | Engineer | Illinois |
| 14 | Ellen Cunningham | 43 | Wife | None | Indiana |
| 15 | Charles Olson | 56 | Head | Police | Illinois |
| 16 | Lilly Olson | 45 | Wife | None | Iowa |
| 17 | Ethel Olson | 22 | Daughter | Stenographer | Illinois |
| 18 | Charles Jr Olson | 17 | Son | None | Illinois |
| 19 | Ruth Olson | 12 | Daughter | None | Illinois |
| 20 | Audrey Olson | 8 | Daughter | None | Illinois |
| 21 | Frank Mayer | 58 | Head | Janitor | Austria |
| 22 | Mary Mayer THIS PERSON | 45 | Wife | None | Austria |
| 23 | Mary Mayer | 23 | Daughter | Hairdresser | Austria |
| 24 | Marie Mayer | 17 | Daughter | None | Michigan |
| 25 | Anna Mayer | 13 | Daughter | None | Illinois |
| 26 | Peter Tomely | 33 | Head | Blacksmith | Scotland |
| 27 | Grace Tomely | 31 | Wife | None | Illinois |
| 28 | Doris Tomely | 10 | Daughter | None | Illinois |
| 29 | Stella Lewis | 14 | Boarder | None | Illinois |
| 30 | David Tomely | 8 | Brother | None | Illinois |
| 31 | David Tomely | 66 | Father | None | Scotland |
| 32 | Harry Olson | 48 | Head | Stock Clerk | Illinois |
| 33 | Regina Olson | 41 | Wife | None | Illinois |
| 34 | George Olson | 8 | Son | None | Illinois |
| 35 | Andrew Olson | 80 | Father | None | Norway |
| 36 | Berthart Kroll | 46 | Head | Metal Polisher | Germany |
| 37 | Marie Kroll | 44 | Wife | None | Germany |
| 38 | Son Kroll | 17 | Son | Errand Boy | Illinois |
| 39 | Eleanor Kroll | 15 | Daughter | None | Illinois |
| 40 | Mary Ostrander | 65 | Head | None | New York |
| 41 | James Ostrander | 16 | Grandson | None | Illinois |
| 42 | James Mckeown | 50 | Head | Printer | Ireland |
| 43 | Mabel Mckeown | 44 | Wife | None | Illinois |
| 44 | Margaret Mckeown | 13 | Daughter | None | Illinois |
| 45 | Carl A. Waitzgang | 35 | Head | Carpenter | Denmark |
| 46 | Johanna Waitzgang | 46 | Wife | None | Norway |
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)