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.~1915), then head of a 7-person household.
Age 15
b. ~1915
Female
Daughter
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Porter |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Lithuania |
| Mother's Birthplace | Lithuania |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| 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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Joseph Porter | Son | — | 19 | ~1911 |
| Mary Porter | Spouse | — | 44 | ~1886 |
| Matt Porter | Head | — | 48 | ~1882 |
| Edith Porter | Daughter | — | 17 | ~1913 |
| Nathan Porter | Son | — | 8 | ~1922 |
| Margaret Porter | Daughter | — | 15 | ~1915 |
| Ray Porter | Daughter | — | 6 | ~1924 |
Census Appearances
1930
Baltimore, Maryland
Daughter, age 15
Baltimore, Maryland · implied b. ~1915 — 7 household members
| Surname | Porter |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Lithuania |
| Mother's Birthplace | Lithuania |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Daughter, age 26
Baltimore-City-County, Maryland · implied b. ~1914 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Porter |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | Maid |
| Industry | Private Home |
| Class of Worker | PW |
| Hours Worked | 72 |
| Income (1939) | 520 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| 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 15 · b. ~1915 · Maryland
★ You are viewing this record
Sibling
Edith Porter
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ray Porter
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nathan Porter
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Porter
Sibling · 1930 · age 19
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:1930:15thcensus864unit:0815)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Samuel Cortera | 47 | Head | Confectioner | Italy |
| 52 | Sadie Cortera | 42 | Wife | — | Italy |
| 53 | Constance Cortera | 12 | Daughter | — | Maryland |
| 54 | Antony Cortera | 25 | Brother | Retired | Italy |
| 55 | Matt Porter | 48 | Head | Shoe Maker | Lithuania |
| 56 | Mary Porter | 44 | Wife | — | Lithuania |
| 57 | Joseph Porter | 19 | Son | Artist | Maryland |
| 58 | Edith Porter | 17 | Daughter | — | Maryland |
| 59 | Margaret Porter THIS PERSON | 15 | Daughter | — | Maryland |
| 60 | Nathan Porter | 8 | Son | — | Maryland |
| 61 | Ray Porter | 6 | Daughter | — | Maryland |
| 62 | Margaret Gess | 39 | Head | — | Maryland |
| 63 | Katherine Gess | 21 | Daughter | Wrapper | Maryland |
| 64 | Margaret Gess | 18 | Daughter | Wrapper | Maryland |
| 65 | Florence Gess | 16 | Daughter | — | Maryland |
| 66 | Fred Lippman | 36 | Head | — | Greece |
| 67 | Margaret Bush | 40 | Head | Box Maker | Maryland |
| 68 | William Bush | 13 | Son | — | Maryland |
| 69 | Charles Bush | 12 | Son | — | Maryland |
| 70 | Miriam Bush | 44 | Sister | Operator | Maryland |
| 71 | Edward Christopher | 58 | Head | Batch Worker | Maryland |
| 72 | Kate Christopher | 53 | Wife | — | Maryland |
| 73 | Mary Danner | 40 | Head | — | Maryland |
| 74 | William Danner | 15 | Son | — | Maryland |
| 75 | Joseph Taylor | 32 | Head | Sheet Metal Worker | Maryland |
| 76 | Helen Taylor | 27 | Wife | — | Dist of Columbia |
| 77 | Katherine Taylor | 9 | Daughter | — | Dist of Columbia |
| 78 | Betty Taylor | 7 | Daughter | — | Dist of Columbia |
| 79 | Joseph Rider | 45 | Head | Engineer | Maryland |
| 80 | Ida V. Rider | 38 | Wife | — | Maryland |
| 81 | James W. Thomas | 58 | Head | Iron Worker | Maryland |
| 82 | Alice M. Thomas | 58 | Wife | — | Maryland |
| 83 | Morris Konzman | 55 | Head | Foreman | Maryland |
| 84 | Martha J. Konzman | 53 | Wife | — | Maryland |
| 85 | Katherine Konzman | 31 | Daughter | Box Maker | Maryland |
| 86 | Joseph G. Fosler | 12 | Grandson | — | Maryland |
| 87 | John Expistella | 25 | Head | Painter | Maryland |
| 88 | Alice Expistella | 20 | Wife | — | Maryland |
| 89 | John Dole | 67 | Head | Embalmer | Maryland |
| 90 | Augusta Dole | 63 | Wife | — | Maryland |
| 91 | Agnes Dole | 32 | Son | Draughtsman | Maryland |
| 92 | Naomi Dole | 21 | Daughter | Nurse | Maryland |
| 93 | Frank Kaufman | 44 | Head | Painter | Maryland |
| 94 | Bessie Kaufman | 42 | Wife | — | Maryland |
| 95 | Doris Kaufman | 14 | Daughter | — | Maryland |
| 96 | John Sowinski | 37 | Head | Auto Painter | Russia |
| 97 | Marie Sowinski | 34 | Wife | — | Russia |
| 98 | Adolph Sowinski | 14 | Son | — | Maryland |
| 99 | Frank Sowinski | 12 | Son | — | Maryland |
| 100 | Fred Willem | 43 | Head | Steel Worker | 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)