LM
Laura Martin — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this Laura Martin across the 1930 and 1940 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 9-person household.
Age 4
b. ~1926
Female
Daughter
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Martin |
| Given Name | Laura |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Additional Details | |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Election Dis 12 |
| Est. Birth Year | ~1926 |
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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Laura | Age | Birth yr |
|---|---|---|---|---|
| Russell Martin | Son | — | 8 | ~1922 |
| Lucille Martin | Daughter | — | 11 | ~1919 |
| Willie Martin | Daughter | — | 17 | ~1913 |
| Effie Martin | Spouse | — | 35 | ~1895 |
| Charles Martin | Son | — | 1 | ~1929 |
| Effie Martin | Daughter | — | 10 | ~1920 |
| Jesse Martin | Head | — | 37 | ~1893 |
| Rosa Martin | Daughter | — | 9 | ~1921 |
| Laura Martin | Daughter | — | 4 | ~1926 |
Census Appearances
1930
Baltimore, Maryland
Daughter, age 4
Baltimore, Maryland · implied b. ~1926 — 9 household members
| Surname | Martin |
| Given Name | Laura |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-County, Maryland
Daughter, age 14
Baltimore-County, Maryland · implied b. ~1926 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Lola |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Catonsville (part of) |
| 1935 Residence (County) | Baltimore |
| Highest Grade | 8 |
| 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 Laura Martin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Laura Martin
Daughter · 1930 · age 4 · b. ~1926 · Maryland
★ You are viewing this record
Sibling
Charles Martin
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Willie Martin
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Russell Martin
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rosa Martin
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Effie Martin
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lucille Martin
Sibling · 1930 · age 11
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:1930:15thcensus847unit:0211)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Walter Williamson | 38 | Head | Molder | South Carolina |
| 2 | Amelia Williamson | 35 | Wife | Paddler | South Carolina |
| 3 | Augustus Williamson | 13 | Son | — | South Carolina |
| 4 | Lucille Williamson | 12 | Daughter | — | South Carolina |
| 5 | Esther Williamson | 11 | Daughter | — | South Carolina |
| 6 | Thelma Williamson | 9 | Daughter | — | South Carolina |
| 7 | Samuel Williamson | 8 | Son | — | South Carolina |
| 8 | Mary Williamson | 5 | Daughter | — | South Carolina |
| 9 | Margaret Williamson | 2 | Daughter | — | South Carolina |
| 10 | Katherine Williamson | 0 | Daughter | — | Maryland |
| 11 | George Gregory | 24 | Head | Bricklayer | Virginia |
| 12 | Blanche Gregory | 21 | Wife | — | Virginia |
| 13 | George Gregory | 1 | Son | — | Virginia |
| 14 | Milton Gregory | 0 | Son | — | Maryland |
| 15 | John Baker | 24 | Head | Laborer | North Carolina |
| 16 | Hannah Baker | 20 | Wife | — | North Carolina |
| 17 | Mckinley Fields | 22 | Boarder | Laborer | North Carolina |
| 18 | Andrew Fields | 19 | Boarder | Laborer | North Carolina |
| 19 | Samuel Rune | 27 | Head | Laborer | Virginia |
| 20 | Rosa Rune | 27 | Wife | — | Virginia |
| 21 | Emmett Gregory | 36 | Head | Laborer | Virginia |
| 22 | Elizabeth Gregory | 23 | Wife | — | Virginia |
| 23 | Ethel Gregory | 2 | Daughter | — | Virginia |
| 24 | Joseph Cornish | 26 | Head | Laborer | Maryland |
| 25 | Mary Cornish | 22 | Wife | — | Virginia |
| 26 | Mary Cornish | 5 | Daughter | — | Maryland |
| 27 | Joseph Cornish | 4 | Son | — | Maryland |
| 28 | William Cornish | 2 | Son | — | Maryland |
| 29 | Emma Cornish | 0 | Daughter | — | Maryland |
| 30 | Frank Mitchell | 37 | Head | Laborer | Virginia |
| 31 | Lizzie Mitchell | 38 | Wife | — | Virginia |
| 32 | James Willis | 18 | Step-son | Days Work | Virginia |
| 33 | Joseph Mitchell | 17 | Son | — | Maryland |
| 34 | Frances Mitchell | 11 | Daughter | — | Maryland |
| 35 | Lillie Mitchell | 8 | Daughter | — | Maryland |
| 36 | James Mitchell | 7 | Son | — | Maryland |
| 37 | Gilbert Mitchell | 5 | Son | — | Maryland |
| 38 | Viola Mitchell | 3 | Daughter | — | Maryland |
| 39 | Mary Mitchell | 1 | Daughter | — | Maryland |
| 40 | George Millis | 22 | Son-in-law | Odd Jobs | North Carolina |
| 41 | Mildred Millis | 17 | Daughter | — | Maryland |
| 42 | Jesse Martin | 37 | Head | Semi-Skilled | Virginia |
| 43 | Effie Martin | 35 | Wife | Odd Jobs | Virginia |
| 44 | Willie E. Martin | 17 | Daughter | — | Virginia |
| 45 | Lucille Martin | 11 | Daughter | — | Maryland |
| 46 | Effie Martin | 10 | Daughter | — | Maryland |
| 47 | Rosa L. Martin | 9 | Daughter | — | Maryland |
| 48 | Russell Martin | 8 | Son | — | Maryland |
| 49 | Laura Martin THIS PERSON | 4 | Daughter | — | Maryland |
| 50 | Charles E. Martin | 1 | Son | — | 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)