MJ
Mary Jordan — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this Mary Jordan across the 1920 and 1930 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1915), then head of a 12-person household.
Age 15
b. ~1915
Female
Daughter
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Jordan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| 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 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.
12 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Lolita Jordan | Daughter | — | 6 | ~1924 |
| Virginia Jordan | Daughter | — | 8 | ~1922 |
| Mary Jordan | Daughter | — | 15 | ~1915 |
| Ethel Jordan | Daughter | — | 10 | ~1920 |
| Hazel Jordan | Daughter | — | 17 | ~1913 |
| Sabilla Jordan | Daughter | — | 5 | ~1925 |
| Walter Jordan | Head | — | 40 | ~1890 |
| Emma Jordan | Other | — | 38 | ~1892 |
| Walter Jordan | Son | — | 2 | ~1928 |
| William Jordan | Son | — | 12 | ~1918 |
| Milford Jordan | Son | — | 14 | ~1916 |
| Elmer Jordan | Son | — | 9 | ~1921 |
Census Appearances
1920
None, Maryland
Daughter, age 5
None, Maryland · implied b. ~1915 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jordan |
| Given Name | May |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | No |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Daughter, age 15
Baltimore, Maryland · implied b. ~1915 — 12 household members
| Surname | Jordan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| 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 |
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 Mary Jordan across 2 US Census years (1920 and 1930) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Jordan
Daughter · 1930 · age 15 · b. ~1915 · Maryland
★ You are viewing this record
Sibling
William Jordan
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sabilla Jordan
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Jordan
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hazel Jordan
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lolita Jordan
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elmer Jordan
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Milford Jordan
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Jordan
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ethel Jordan
Sibling · 1930 · age 10
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:1930:15thcensus866unit:0958)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank Zuehlke | 54 | Head | Laborer | Germany |
| 2 | Martha Zuehlke | 53 | Wife-H | — | Germany |
| 3 | Sophia Collins | 22 | Daughter | Telephone Oper. | Maryland |
| 4 | Henry Collins | 3 | Grandson | — | Maryland |
| 5 | George Zuehlke | 48 | Head | Salesman | Maryland |
| 6 | Anna Zuehlke | 46 | Wife-H | — | Maryland |
| 7 | Katherine Zuehlke | 24 | Daughter | Bookkeeper | Maryland |
| 8 | John Dentinger | 38 | Boarder | Dishr | Maryland |
| 9 | Sophia Grube | 52 | Head-H | Proprietress | Lithuania |
| 10 | Marion Grube | 29 | Daughter | Saleslady | Maryland |
| 11 | Wilhelmina Grube | 24 | Daughter | — | Maryland |
| 12 | Henry Grube | 20 | Son | — | Maryland |
| 13 | Walter Jordan | 40 | Head | Patrolman | Maryland |
| 14 | Emma Jordan | 38 | Wife-H | — | Maryland |
| 15 | Hazel Jordan | 17 | Daughter | Seamstress | Maryland |
| 16 | Mary Jordan THIS PERSON | 15 | Daughter | — | Maryland |
| 17 | Milford Jordan | 14 | Son | — | Maryland |
| 18 | William Jordan | 12 | Son | — | Maryland |
| 19 | Ethel Jordan | 10 | Daughter | — | Maryland |
| 20 | Elmer Jordan | 9 | Son | — | Maryland |
| 21 | Virginia Jordan | 8 | Daughter | — | Maryland |
| 22 | Lolita Jordan | 6 | Daughter | — | Maryland |
| 23 | Sabilla Jordan | 5 | Daughter | — | Maryland |
| 24 | Walter J. Jordan | 2 | Son | — | Maryland |
| 25 | Balantini Blanket | 71 | Head | Laborer | Bohemia |
| 26 | Mary Blanket | 64 | Wife-H | — | Bohemia |
| 27 | Ella Johnson | 32 | Daughter | — | Maryland |
| 28 | Andrew Johnson | 28 | Son-in-law | Carpenter | Maryland |
| 29 | Lettie Blanket | 22 | Daughter | — | Maryland |
| 30 | Ruth Johnson | 9 | Granddaughter | — | Maryland |
| 31 | William Johnson | 8 | Grandson | — | Maryland |
| 32 | Earl Johnson | 6 | Grandson | — | Maryland |
| 33 | Charles Kajewski | 55 | Head | Laborer | Poland |
| 34 | Bertha Kajewski | 46 | Wife-H | — | Poland |
| 35 | Walter Kajewski | 23 | Son | Laborer | Maryland |
| 36 | Joseph Kajewski | 21 | Son | Laborer | Maryland |
| 37 | Jennie Kajewski | 16 | Daughter | — | Maryland |
| 38 | Helen Kajewski | 10 | Daughter | — | Maryland |
| 39 | Joseph Opatovsky | 56 | Head | Carpenter | Bohemia |
| 40 | Anna Opatovsky | 44 | Wife-H | — | Bohemia |
| 41 | Joseph Opatovsky | 22 | Son | Machinist | Maryland |
| 42 | Estella Opatovsky | 20 | Daughter | — | Maryland |
| 43 | Frank Opatovsky | 16 | Son | — | Maryland |
| 44 | Anna Opatovsky | 13 | Daughter | — | Maryland |
| 45 | Louis Opatovsky | 11 | Son | — | Maryland |
| 46 | Blanche Opatovsky | 9 | Daughter | — | Maryland |
| 47 | Alex Malinowski | 57 | Head | Laborer | Poland |
| 48 | Stella Malinowski | 47 | Wife-H | — | Poland |
| 49 | Lucy Malinowski | 16 | Daughter | Seamstress | Maryland |
| 50 | Theodore Malek | 38 | Head | Proprietor | Poland |
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)