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Mary Lambert — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this Mary Lambert across the 1920 and 1930 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1910), then head of a 14-person household.
Age 20
b. ~1910
Female
Daughter
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Lambert |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| 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 | ~1910 |
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.
14 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Margaret Lambert | Daughter | — | 14 | ~1916 |
| Mary Lambert | Daughter | — | 20 | ~1910 |
| Elizabeth Lambert | Daughter | — | 16 | ~1914 |
| Myrtle Lambert | Daughter | — | 26 | ~1904 |
| Catherine Lambert | Daughter | — | 18 | ~1912 |
| John Lambert | Head | — | 64 | ~1866 |
| Joseph Lambert | Son | — | 10 | ~1920 |
| William Lambert | Son | — | 28 | ~1902 |
| Francis Lambert | Son | — | 8 | ~1922 |
| George Lambert | Son | — | 22 | ~1908 |
| Benjamin Lambert | Son | — | 12 | ~1918 |
| John Lambert | Son | — | 31 | ~1899 |
| Robert Lambert | Son | — | 6 | ~1924 |
| Mary Lambert | Spouse | — | 64 | ~1866 |
Census Appearances
1920
Baltimore, Maryland
Daughter, age 10
Baltimore, Maryland · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lambert |
| Given Name | May |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | North Carolina |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Daughter, age 20
Baltimore, Maryland · implied b. ~1910 — 14 household members
| Surname | Lambert |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| 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 Lambert across 2 US Census years (1920 and 1930) in Baltimore, Maryland, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Lambert
Daughter · 1930 · age 20 · b. ~1910 · Maryland
★ You are viewing this record
Sibling
Robert Lambert
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Lambert
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Lambert
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Myrtle Lambert
Sibling · 1930 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Lambert
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Benjamin Lambert
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Lambert
Sibling · 1930 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Lambert
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Lambert
Sibling · 1930 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Lambert
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Lambert
Sibling · 1930 · age 16
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:1930:15thcensus861unit:0356)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Holger | 48 | Head | Paving | Maryland |
| 2 | Mary Holger | 46 | Wife | — | Maryland |
| 3 | John Holger | 14 | Son | — | Maryland |
| 4 | John Brown | 26 | Head | Trucker | Maryland |
| 5 | Marjorie Brown | 24 | Wife | — | Maryland |
| 6 | Marjorie Brown | 4 | Daughter | — | Maryland |
| 7 | John Brown | 2 | Son | — | Maryland |
| 8 | Virginia Brown | 20 | Boarder | Stenographer | Virginia |
| 9 | John Lunn | 26 | Head | Foreman | Maryland |
| 10 | Mary Lunn | 23 | Wife | — | Maryland |
| 11 | John Stelling | 23 | Head | Clerk | Maryland |
| 12 | Ruth Stelling | 21 | Wife | — | Maryland |
| 13 | John Stelling | 1 | Son | — | Maryland |
| 14 | Ruth Stelling | 0 | Daughter | — | Maryland |
| 15 | Mary Stelling | 52 | Mother | — | Maryland |
| 16 | Catherine Stelling | 18 | Sister | — | Maryland |
| 17 | James Tignall | 52 | Head | Collector | Virginia |
| 18 | Annie Tignall | 52 | Wife | — | Virginia |
| 19 | James Tignall | 24 | Son | Typist | Virginia |
| 20 | William Tignall | 22 | Son | Clerk | Virginia |
| 21 | Robert Tignall | 18 | Son | Porter | Virginia |
| 22 | Dorothy Tignall | 16 | Daughter | — | Virginia |
| 23 | Virginia Tignall | 14 | Daughter | — | Virginia |
| 24 | Mildred Tignall | 12 | Daughter | — | Virginia |
| 25 | John Minarch | 52 | Head | Iron Worker | Europe |
| 26 | Mary Minarch | 50 | Wife | — | Maryland |
| 27 | John Minarch | 27 | Head | Private | Maryland |
| 28 | Mary Minarch | 23 | Wife | — | Maryland |
| 29 | John Minarch | 5 | Son | — | Maryland |
| 30 | Mary Minarch | 3 | Daughter | — | Maryland |
| 31 | Albert Minarch | 1 | Son | — | Maryland |
| 32 | William Minarch | 0 | Son | — | Maryland |
| 33 | John Lambert | 64 | Head | — | Maryland |
| 34 | Mary Lambert | 64 | Wife | — | Maryland |
| 35 | John Lambert | 31 | Son | — | Maryland |
| 36 | William Lambert | 28 | Son | — | Maryland |
| 37 | George Lambert | 22 | Son | — | Maryland |
| 38 | Mary Lambert THIS PERSON | 20 | Daughter | — | Maryland |
| 39 | Catherine Lambert | 18 | Daughter | Supervisor | Maryland |
| 40 | Elizabeth Lambert | 16 | Daughter | Clerical Work | Maryland |
| 41 | Margaret Lambert | 14 | Daughter | — | Maryland |
| 42 | Benjamin Lambert | 12 | Son | — | Maryland |
| 43 | Joseph Lambert | 10 | Son | — | Maryland |
| 44 | Francis Lambert | 8 | Son | — | Maryland |
| 45 | Robert Lambert | 6 | Son | — | Maryland |
| 46 | Myrtle Lambert | 26 | Daughter | Saleslady | Maryland |
| 47 | James Weber | 65 | Head | Manager | Maryland |
| 48 | Emma Weber | 52 | Wife | — | Maryland |
| 49 | Ruth Aldridge | 15 | Boarder | — | Maryland |
| 50 | — | None | — | — | — |
Related Census Records
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)