MP
Margaret Porter — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this Margaret Porter across the 1930 and 1940 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1920), then head of a 6-person household.
Age 10
b. ~1920
Female
Daughter
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Porter |
| Given Name | Margaret J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore |
| Est. Birth Year | ~1920 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| John Porter | Head | — | 36 | ~1894 |
| Edward Porter | Son | — | 13 | ~1917 |
| Helen Porter | Spouse | — | 35 | ~1895 |
| Walter Porter | Son | — | 7 | ~1923 |
| Evelyn Porter | Daughter | — | 11 | ~1919 |
| Margaret Porter | Daughter | — | 10 | ~1920 |
Census Appearances
1930
Baltimore, Maryland
Daughter, age 10
Baltimore, Maryland · implied b. ~1920 — 6 household members
| Surname | Porter |
| Given Name | Margaret J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Daughter, age 20
Baltimore-City-County, Maryland · implied b. ~1920 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Portier |
| Given Name | Margaret E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | Cashier |
| Industry | Retail Dept Store |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 210 |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 · 1930 · age 10 · b. ~1920 · Maryland
★ You are viewing this record
Sibling
Walter Porter
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evelyn Porter
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Porter
Sibling · 1930 · age 13
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 — Baltimore, Maryland
Open full size
1930 US Federal Census — Baltimore, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus863unit:0905)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Peppeli | 42 | Head | Operator | Italy |
| 2 | Emma Peppeli | 42 | Wife | — | Italy |
| 3 | Rose Peppeli | 21 | Daughter | Operator | Maryland |
| 4 | Mary Peppeli | 19 | Daughter | Operator | Maryland |
| 5 | Leonora Peppeli | 13 | Son | — | Maryland |
| 6 | Marion Peppeli | 11 | Son | — | Maryland |
| 7 | Carl Peppeli | 21 | Son | Mechanic | Maryland |
| 8 | Cecelia Peppeli | 17 | Daughter-in-law | — | Maryland |
| 9 | Paul Drossel | 49 | Head | Iron Worker | Maryland |
| 10 | Sophie Drossel | 15 | Daughter | — | Maryland |
| 11 | James S. Mccarthy | 33 | Head | Iron Worker | Maryland |
| 12 | Agnes C. Mccarthy | 31 | Wife | — | Maryland |
| 13 | Michael J. Mccarthy | 11 | Son | — | Maryland |
| 14 | Katherine Mccarthy | 9 | Daughter | — | Maryland |
| 15 | William Hagan | 34 | Brother-in-law | — | Maryland |
| 16 | Elizabeth Hagan | 36 | Sister-in-law | — | Maryland |
| 17 | Mary Hagan | 38 | Sister-in-law | Operator | Maryland |
| 18 | John P. Hagan | 41 | Brother-in-law | Plumber | Maryland |
| 19 | Catherine Dierdorff | 54 | Head | — | Germany |
| 20 | Charles H. Dierdorff | 32 | Son | Sheet Cutter | Maryland |
| 21 | Oscar J. Dierdorff | 28 | Son | Mechanic | Maryland |
| 22 | Mary C. Peterson | 50 | Head | — | Maryland |
| 23 | Anna C. Peterson | 47 | Wife | — | Maryland |
| 24 | David M. Peterson | 22 | Son | Conductor | Maryland |
| 25 | Elizabeth O. Peterson | 23 | Daughter | Capper | Maryland |
| 26 | Mary L. Peterson | 18 | Son | — | Maryland |
| 27 | Anna C. Peterson | 15 | Daughter | — | Maryland |
| 28 | Charles H. Munster | 57 | Head | Repairer | Maryland |
| 29 | Laura V. Munster | 55 | Wife | — | Maryland |
| 30 | Lorna Munster | 17 | Daughter | — | Maryland |
| 31 | John C. Porter | 36 | Head | Salesman | Maryland |
| 32 | Helen D. Porter | 35 | Wife | — | Maryland |
| 33 | Edward Porter | 13 | Son | — | Maryland |
| 34 | Evelyn B. Porter | 11 | Daughter | — | Maryland |
| 35 | Margaret J. Porter THIS PERSON | 10 | Daughter | — | Maryland |
| 36 | Walter C. Porter | 7 | Son | — | Maryland |
| 37 | Frederick Eckhoff | 30 | Head | — | Maryland |
| 38 | Ruth C. Eckhoff | 30 | Wife | — | Maryland |
| 39 | Frederick Jr. Eckhoff | 5 | Son | — | Maryland |
| 40 | Arthur Eckhoff | 2 | Son | — | Maryland |
| 41 | Alfred Eckhoff | 1 | Son | — | Maryland |
| 42 | Joshua Lamb | 54 | Head | — | Maryland |
| 43 | Alice J. Lamb | 54 | Wife | — | Maryland |
| 44 | Michael J. Lamb | 18 | Son | Operator | Maryland |
| 45 | Teresa Connor | 55 | Head | Operator | Maryland |
| 46 | Mary Connor | 25 | Daughter | Typer | Maryland |
| 47 | Louis Matthews | 52 | Head | Salesman | Maryland |
| 48 | Angela Matthews | 50 | Wife | — | Maryland |
| 49 | Agnes Schumacher | 42 | Head | Operator | Maryland |
| 50 | Nelson Schumacher | 20 | Son | Clerk | Maryland |
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)