RM
Rosa Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sawyer-County, Wisconsin
Our Model Tree links this Rosa Martin across the 1930 and 1940 US Censuses in Sawyer-County, Wisconsin (XGBoost, ~Confirmed) — first a daughter (b.~1915), then head of a 8-person household.
Age 25
b. ~1915
Female
Daughter
Born: Wisconsin
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sawyer-County, Wisconsin |
| Surname | Martin |
| Given Name | Rosa M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (County) | Sawyer |
| Additional Details | |
| Occupation | U.S. Post Office |
| Industry | GW |
| Class of Worker | 252 |
| Highest Grade | H 4 |
| 1935 Residence | 48 |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | U.S. Post Office |
| Township / Ward | Winter Village |
| Est. Birth Year | ~1915 |
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 1940 census.
| Name | Relation to head | Relative to Rosa | Age | Birth yr |
|---|---|---|---|---|
| Caroline Martin | Daughter | — | 22 | ~1918 |
| Rosa Martin | Daughter | — | 25 | ~1915 |
| Frank Martin | Head | — | 67 | ~1873 |
| Mary Martin | Spouse | — | 56 | ~1884 |
| Henry Martin | Son | — | 19 | ~1921 |
| Mabel Martin | Daughter | — | 22 | ~1918 |
| Frank Martin | Son | — | 27 | ~1913 |
| F Martin | Son | — | 34 | ~1906 |
Census Appearances
Daughter, age 15
Sawyer, Wisconsin · implied b. ~1915 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Rose M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Sawyer-County, Wisconsin
Daughter, age 25
Sawyer-County, Wisconsin · implied b. ~1915 — 8 household members
| Surname | Martin |
| Given Name | Rosa M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (County) | Sawyer |
| Occupation | U.S. Post Office |
| Industry | GW |
| Class of Worker | 252 |
| Highest Grade | H 4 |
| 1935 Residence | 48 |
| 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 Rosa Martin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Rosa Martin
Daughter · 1940 · age 25 · b. ~1915 · Wisconsin
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Sibling
Mabel Martin
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henry Martin
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
F Martin
Sibling · 1940 · age 34
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Martin
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Caroline Martin
Sibling · 1940 · age 22
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
1940 US Federal Census — Sawyer-County, Wisconsin
Open full size
1940 US Federal Census — Sawyer-County, Wisconsin
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-04524-00339)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Arvid P. Hanson | 1 | Son | — | Wisconsin |
| 42 | Andrew L. Nelson | 68 | Lodger | Farm Laborer | Sweden |
| 43 | Jerome L. Sr. Martin | 32 | Head | Retail General Store | Wisconsin |
| 44 | Rose M. Martin | 22 | Wife | — | Wisconsin |
| 45 | Jerome L. Jr. Martin | 1 | Son | — | Wisconsin |
| 46 | Otto F. Melchert | 56 | Head | — | Wisconsin |
| 47 | Marion S. Melchert | 29 | Wife | — | Michigan |
| 48 | Otto Junior Melchert | 11 | Son | — | Wisconsin |
| 49 | Loraine E. Melchert | 9 | Daughter | — | Wisconsin |
| 50 | James R. Melchert | 7 | Son | — | Wisconsin |
| 51 | Francis M. Melchert | 5 | Son | — | Wisconsin |
| 52 | William Melchert | 3 | Son | — | Wisconsin |
| 53 | Richard Melchert | 1 | Son | — | Wisconsin |
| 54 | Charles W. Pippinger | 48 | Head | 8 | Wisconsin |
| 55 | Mabel C. Pippinger | 43 | Wife | — | Wisconsin |
| 56 | Eva M. Pippinger | 19 | Daughter | — | Wisconsin |
| 57 | Edith M. Pippinger | 17 | Daughter | — | Wisconsin |
| 58 | Raymond A. Pippinger | 12 | Son | — | Wisconsin |
| 59 | Alberta J. Pippinger | 12 | Daughter | — | Wisconsin |
| 60 | Frank P. Martin | 67 | Head | — | Wisconsin |
| 61 | Mary E. Martin | 56 | Wife | — | Wisconsin |
| 62 | F. Ross Martin | 34 | Son | Newspaper | Wisconsin |
| 63 | Frank M. Jr. Martin | 27 | Son | Service Station | Wisconsin |
| 64 | Rosa M. Martin THIS PERSON | 25 | Daughter | U.S. Post Office | Wisconsin |
| 65 | Mabel G. Martin | 22 | Daughter | Town Hall Nya | Wisconsin |
| 66 | Caroline J. Martin | 22 | Daughter | U.S. Post Office | Wisconsin |
| 67 | Henry P. Martin | 19 | Son | — | Wisconsin |
| 68 | Lowell E. Digby | 62 | Head | — | Connecticut |
| 69 | Mabel Digby | 38 | Wife | — | Wisconsin |
| 70 | Edna L. Digby | 20 | Daughter | Public School Nya | Wisconsin |
| 71 | Pearl M. Digby | 18 | Daughter | Private Family | Wisconsin |
| 72 | Lewis E. Digby | 17 | Son | — | Wisconsin |
| 73 | Arthur J. Digby | 16 | Son | — | Wisconsin |
| 74 | Margie S. Digby | 14 | Daughter | — | Wisconsin |
| 75 | Della M. Digby | 11 | Daughter | — | Wisconsin |
| 76 | Walter W. Digby | 7 | Son | — | Wisconsin |
| 77 | Dolly D. Digby | 7 | Daughter | — | Wisconsin |
| 78 | Grace L. Digby | 2 | Daughter | — | Wisconsin |
| 79 | Arthur Digby | 70 | Brother | — | Connecticut |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)