WM
William Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Waukesha-County, Wisconsin
Our Model Tree links this William Martin across the 1920, 1930 and 1940 US Censuses in Waukesha-County, Wisconsin (XGBoost, ~Confirmed), with identified parents William & William — first a son (b.~1917), then head of a 3-person household.
Age 23
b. ~1917
Male
Son
Born: Wisconsin
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Waukesha-County, Wisconsin |
| Surname | Martin |
| Given Name | William Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (County) | Waukesha |
| Additional Details | |
| Occupation | 52 |
| Industry | Salesclerk |
| Class of Worker | Auto supplies |
| Highest Grade | Hs 4 |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | 52 |
| Township / Ward | Waukesha City |
| Est. Birth Year | ~1917 |
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 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Martin | Head | — | 54 | ~1886 |
| William Martin | Son | — | 23 | ~1917 |
| Dorothy Martin | Spouse | — | 42 | ~1898 |
Census Appearances
1920
Waukesha, Wisconsin
Son, age 3
Waukesha, Wisconsin · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | none |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1930
Waukesha, Wisconsin
Son, age 13
Waukesha, Wisconsin · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | William Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| 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
Waukesha-County, Wisconsin
Son, age 23
Waukesha-County, Wisconsin · implied b. ~1917 — 3 household members
| Surname | Martin |
| Given Name | William Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (County) | Waukesha |
| Occupation | 52 |
| Industry | Salesclerk |
| Class of Worker | Auto supplies |
| Highest Grade | Hs 4 |
| 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 William Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Martin (~0.92 confidence) and father William Martin (~0.92 confidence) and mother Dorothy Martin (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Martin
b. ~1886
Source father
● Household
· direct · ~0.92
Father
William Martin
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Dorothy Martin
b. ~1898
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Martin
Son · 1940 · age 23 · b. ~1917 · Wisconsin
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Waukesha-County, Wisconsin
Open full size
1940 US Federal Census — Waukesha-County, Wisconsin
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-04534-00604)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Lee Kraft | 2 | Daughter | — | Wisconsin |
| 2 | Head Kraft | 70 | Head | — | Ohio |
| 3 | Mrs Betty Franson | 45 | Head | 40 | Wisconsin |
| 4 | Jackie Lee Franson | 2 | Son | — | Illinois |
| 6 | Harvey Stacy | 29 | Head | 46 | Minnesota |
| 7 | Dorothy Stacy | 30 | Wife | 48 | Minnesota |
| 8 | Adolph Hollenbeck | 41 | Head | 45 | Wisconsin |
| 9 | Esther Hollenbeck | 41 | Wife | — | Wisconsin |
| 10 | Joanne Hollenbeck | 6 | Daughter | — | Wisconsin |
| 11 | Vincent Price | 37 | Head | 40 | Wisconsin |
| 12 | Verna Price | 35 | Wife | — | Wisconsin |
| 13 | Louise Price | 11 | Daughter | — | Wisconsin |
| 14 | Dorothy Price | 9 | Daughter | — | Wisconsin |
| 15 | David Price | 4 | Son | — | Wisconsin |
| 16 | Albert Price | 53 | Head | 42 | Wisconsin |
| 17 | Flora Price | 43 | Wife | — | Wisconsin |
| 18 | Rose Price | 23 | Daughter | 30 | Wisconsin |
| 19 | Agnes Price | 19 | Daughter | — | Wisconsin |
| 20 | Harold Price | 16 | Son | — | Wisconsin |
| 21 | Herman E Stender | 36 | Head | 48 | Washington |
| 22 | Gladys Stender | 35 | Wife | — | Wisconsin |
| 23 | Charles Stender | 7 | Son | — | Wisconsin |
| 24 | William Stender | 5 | Son | — | Wisconsin |
| 25 | Richard Doernagen | 25 | Head | 48 | Wisconsin |
| 26 | Harriet Doernagen | 25 | Wife | — | Wisconsin |
| 27 | Joseph W Romberer | 53 | Head | — | New York |
| 28 | Ethel Romberer | 46 | Wife | — | Wisconsin |
| 29 | James Romberer | 20 | Brother in law | 52 | Wisconsin |
| 30 | William J Martin | 54 | Head | 66 | Wisconsin |
| 31 | Dorothy Martin | 42 | Wife | — | Wisconsin |
| 32 | William Jr Martin THIS PERSON | 23 | Son | 52 | Wisconsin |
| 33 | Mathew Matheson | 65 | Head | 0 | Wisconsin |
| 34 | Carrie Matheson | 60 | Wife | — | Norway |
| 35 | Eugene Merryfield | 46 | Head | 40 | Wisconsin |
| 36 | Emma Merryfield | 50 | Wife | 24 | Wisconsin |
| 37 | Robert Downs | 36 | Head | 40 | Illinois |
| 38 | Adele Downs | 36 | Wife | — | Wisconsin |
| 39 | Neil Downs | 9 | Son | — | Illinois |
| 40 | Frank Newell | 36 | Head | 42 | Wisconsin |
Related Census Records
Pedigree Summary
William
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)