MP
Margaret Porter — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Dane-County, Wisconsin
Our Model Tree links this Margaret Porter across the 1930 and 1940 US Censuses in Dane-County, Wisconsin (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 8-person household.
Age 17
b. ~1923
Female
Daughter
Born: Wisconsin
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Dane-County, Wisconsin |
| Surname | Porter |
| Given Name | Margaret B. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Madison City |
| 1935 Residence (County) | Dane |
| Additional Details | |
| Highest Grade | Hs 3 |
| 1935 Residence | Wisconsin |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Township / Ward | Madison City |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Philip Porter | Head | — | 48 | ~1892 |
| Martha Porter | Daughter | — | 8 | ~1932 |
| Helen Marek | Other | — | 28 | ~1912 |
| Mary Porter | Daughter | — | 19 | ~1921 |
| Ruth Porter | Spouse | — | 45 | ~1895 |
| Elizabeth Porter | Daughter | — | 3 | ~1937 |
| John Porter | Son | — | 22 | ~1918 |
| Margaret Porter | Daughter | — | 17 | ~1923 |
Census Appearances
1930
Dane, Wisconsin
Daughter, age 7
Dane, Wisconsin · implied b. ~1923 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Porter |
| Given Name | Margaret E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Dane-County, Wisconsin
Daughter, age 17
Dane-County, Wisconsin · implied b. ~1923 — 8 household members
| Surname | Porter |
| Given Name | Margaret B. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Madison City |
| 1935 Residence (County) | Dane |
| Highest Grade | Hs 3 |
| 1935 Residence | Wisconsin |
| 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 Margaret Porter across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Porter
Daughter · 1940 · age 17 · b. ~1923 · Wisconsin
★ You are viewing this record
Sibling
Mary Porter
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Porter
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Porter
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martha Porter
Sibling · 1940 · age 8
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 — Dane-County, Wisconsin
Open full size
1940 US Federal Census — Dane-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04469-00199)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Charles Thorp | 27 | head | Real Estate | Ohio |
| 42 | Helen Thorp | 28 | wife | — | Ohio |
| 43 | Harry L. Arnegard | 55 | head | Purchasing Manager | Dakota |
| 44 | Lurine L. Arnegard | 53 | wife | — | Minnesota |
| 45 | Barbara Koopman | 24 | Daughter | Nursing | Iowa |
| 46 | Robert B. Koopman | 4 | Grandson | — | California |
| 47 | Fred M. Hansen | 53 | head | — | Denmark |
| 48 | Howard Hansen | 19 | son | — | Wisconsin |
| 49 | Foster S. Randle | 52 | head | Principal In General | Illinois |
| 50 | Helen B. Randle | 48 | wife | — | Kansas |
| 51 | Robert B. Randle | 24 | son | Teller | Illinois |
| 52 | Foster S. J. Randle | 22 | son | Checker | Arizona |
| 53 | Ruth G. Randle | 10 | Daughter | — | Wisconsin |
| 54 | Philip H. Porter | 48 | head | Lawyer For State | Wisconsin |
| 55 | Ruth T. Porter | 45 | wife | — | Illinois |
| 56 | John T. Porter | 22 | son | — | Wisconsin |
| 57 | Mary Louise Porter | 19 | Daughter | — | Wisconsin |
| 58 | Margaret B. Porter THIS PERSON | 17 | Daughter | — | Wisconsin |
| 59 | Martha Alice Porter | 8 | Daughter | — | Wisconsin |
| 60 | Elizabeth Ann Porter | 3 | Daughter | — | Wisconsin |
| 61 | Helen Marek | 28 | Maid | Maid | Wisconsin |
| 62 | Earl B. Riley | 34 | head | Waiter | Wisconsin |
| 63 | Viola L. Riley | 35 | wife | — | Wisconsin |
| 64 | Carol Ann Riley | 3 | Daughter | — | Wisconsin |
| 65 | Nellie Griffin | 44 | Maid | Teacher | Wisconsin |
| 66 | Raymond G. Boltz | 62 | head | Fireman | Iowa |
| 67 | Elizabeth Jane Boltz | 58 | wife | — | Minnesota |
| 68 | Mary Gallagher | 84 | head | — | New York |
| 69 | Alice Gallagher | 50 | daughter | Teaching School | Wisconsin |
| 70 | Kathryn Gallagher | 48 | daughter | Teaching School | Wisconsin |
| 71 | Isabelle Henderson | 75 | head | — | Iowa |
| 72 | Sarah L. Henderson | 49 | daughter | Bookkeeper | Iowa |
| 73 | Dixie M. Henderson | 46 | daughter | Secretary | Iowa |
| 74 | Arnold G. Henderson | 39 | son | Manager | Iowa |
| 75 | Floy F. Briese | 42 | head | Instructor | Wisconsin |
| 76 | Jessie Briese | 39 | wife | — | Wisconsin |
| 77 | William Boyle | 50 | head | Dentist | Wisconsin |
| 78 | Henrietta Boyle | 48 | wife | — | Wisconsin |
| 79 | John Boyle | 19 | son | Office Boy | Wisconsin |
| 80 | William Boyle | 17 | son | — | Wisconsin |
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)