MW
Mary Walter — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Bayfield, Wisconsin
Our Model Tree links this Mary Walter across the 1930 and 1940 US Censuses in Bayfield, Wisconsin (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 7-person household.
Age 7
b. ~1923
Female
Daughter
Born: Wisconsin
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Bayfield, Wisconsin |
| Surname | Walter |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Illinois |
| Mother's Birthplace | N. Dakota |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Township / Ward | Township Of Drummond |
| Est. Birth Year | ~1923 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Lee Walter | Head | — | 43 | ~1887 |
| Lewis Walter | Son | — | 21 | ~1909 |
| Grace Walter | Daughter | — | 17 | ~1913 |
| Ray Walter | Son | — | 14 | ~1916 |
| Mary Walter | Daughter | — | 7 | ~1923 |
| Lloyd Walter | Son | — | 9 | ~1921 |
| Emma Walter | Spouse | — | 44 | ~1886 |
Census Appearances
1930
Bayfield, Wisconsin
Daughter, age 7
Bayfield, Wisconsin · implied b. ~1923 — 7 household members
| Surname | Walter |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Illinois |
| Mother's Birthplace | N. Dakota |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Bayfield-County, Wisconsin
Daughter, age 17
Bayfield-County, Wisconsin · implied b. ~1923 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Walters |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Town of Drummond |
| 1935 Residence (County) | Bayfield |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Walter across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Walter
Daughter · 1930 · age 7 · b. ~1923 · Wisconsin
★ You are viewing this record
Sibling
Ray Walter
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lewis Walter
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lloyd Walter
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Grace Walter
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Bayfield, Wisconsin
Open full size
1930 US Federal Census — Bayfield, Wisconsin
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2560unit:0293)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Carl E. Fredrickson | 57 | Head | Farmer | Sweden |
| 2 | William Doerr | 44 | Head | Farmer | Illinois |
| 3 | Anna Doerr | 42 | Wife | — | Minnesota |
| 4 | Dorothy Doerr | 16 | Daughter | — | Minnesota |
| 5 | Wilbur Doerr | 15 | Son | — | Minnesota |
| 6 | June Doerr | 11 | Daughter | — | Minnesota |
| 7 | Alfred Friechit | 43 | Head | Carpenter | Wisconsin |
| 8 | Vicki Friechit | 40 | Wife | — | Austria |
| 9 | Wilfred Friechit | 14 | Son | — | Minnesota |
| 10 | Edward Friechit | 12 | Son | — | Minnesota |
| 11 | Margaret Friechit | 6 | Daughter | — | Minnesota |
| 12 | Elizabeth La Barre | 40 | Head | Farmer | Minnesota |
| 13 | Marion La Barre | 16 | Daughter | — | Minnesota |
| 14 | Lawrence La Barre | 12 | Son | — | Minnesota |
| 15 | Arthur La Barre | 11 | Son | — | Minnesota |
| 16 | Charles Warren | 40 | Head | Laborer | Illinois |
| 17 | Sadie Warren | 36 | Wife | — | Illinois |
| 18 | Charlotte Warren | 13 | Daughter | — | N. Dakota |
| 19 | Ruth Warren | 10 | Daughter | — | Minnesota |
| 20 | Fred Warren | 6 | Son | — | Minnesota |
| 21 | Evelyn Warren | 4 | Daughter | — | Minnesota |
| 22 | Mary Warren | 2 | Daughter | — | Minnesota |
| 23 | Lee P. Walter | 43 | Head | Farmer | Illinois |
| 24 | Emma Walter | 44 | Wife | — | North Dakota |
| 25 | Lewis W. Walter | 21 | Son | Laborer | North Dakota |
| 26 | Grace Walter | 17 | Daughter | — | North Dakota |
| 27 | Ray Walter | 14 | Son | — | North Dakota |
| 28 | Lloyd Walter | 9 | Son | — | Wisconsin |
| 29 | Mary Jane Walter THIS PERSON | 7 | Daughter | — | Wisconsin |
| 30 | Henry Baur | 39 | Head | Farmer | Minnesota |
| 31 | Margaret Baur | 37 | Wife | — | Illinois |
| 32 | Henry Jr. Baur | 17 | Son | — | Minnesota |
| 33 | Lydia Steppe | 38 | Head | Farmer | Minnesota |
| 34 | Sylvia Steppe | 18 | Daughter | — | Minnesota |
| 35 | Lyman Steppe | 17 | Son | Laborer | Minnesota |
| 36 | Axel Peterson | 52 | Head | Farmer | Sweden |
| 37 | Hilman Peterson | 41 | Wife | Housework | Sweden |
| 38 | Margaret Peterson | 20 | Daughter | Laborer | North Dakota |
| 39 | Fred Peterson | 23 | Son | Laborer | Sweden |
| 40 | Martha Peterson | 17 | Daughter | — | Minnesota |
| 41 | Bertha Peterson | 13 | Daughter | — | Minnesota |
| 42 | Adina Peterson | 11 | Daughter | — | Wisconsin |
| 43 | Ruth Peterson | 7 | Daughter | — | Wisconsin |
| 44 | Rollin Peterson | 7 | Son | — | Wisconsin |
| 45 | Rudolph Peterson | 7 | Son | — | Wisconsin |
| 46 | Ruby Peterson | 3 | Daughter | — | Wisconsin |
| 47 | Chester E. Warner | 57 | Head | Farmer | Wisconsin |
| 48 | Alverta Warner | 52 | Wife | — | Minnesota |
| 49 | Robert W. Warner | 22 | Son | Farmer | Minnesota |
| 50 | Alvin Dixon | 48 | Head | Farmer | Wisconsin |
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)